diff --git a/backend/src/ee/routes/v1/identity-project-additional-privilege-router.ts b/backend/src/ee/routes/v1/identity-project-additional-privilege-router.ts
index f64d3c979..37deb878f 100644
--- a/backend/src/ee/routes/v1/identity-project-additional-privilege-router.ts
+++ b/backend/src/ee/routes/v1/identity-project-additional-privilege-router.ts
@@ -1,7 +1,6 @@
 import slugify from "@sindresorhus/slugify";
 import { z } from "zod";
 
-import { IdentityProjectAdditionalPrivilegeTemporaryMode } from "@app/ee/services/identity-project-additional-privilege/identity-project-additional-privilege-types";
 import { backfillPermissionV1SchemaToV2Schema } from "@app/ee/services/permission/project-permission";
 import { ApiDocsTags, IDENTITY_ADDITIONAL_PRIVILEGE } from "@app/lib/api-docs";
 import { UnauthorizedError } from "@app/lib/errors";
@@ -16,6 +15,7 @@ import {
   SanitizedIdentityPrivilegeSchema
 } from "@app/server/routes/sanitizedSchemas";
 import { AuthMode } from "@app/services/auth/auth-type";
+import { AccessScope, MembershipActors, TemporaryPermissionMode } from "@app/db/schemas";
 
 export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: FastifyZodProvider) => {
   server.route({
@@ -56,6 +56,10 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
       if (!permissions && !privilegePermission) {
         throw new UnauthorizedError({ message: "Permission or privilegePermission must be provided" });
       }
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        orgId: req.permission.orgId,
+        slug: req.body.projectSlug
+      });
 
       const permission = privilegePermission
         ? privilegePermission.actions.map((action) => ({
@@ -64,19 +68,35 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
             conditions: privilegePermission.conditions
           }))
         : permissions!;
-      const privilege = await server.services.identityProjectAdditionalPrivilege.create({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        ...req.body,
-        slug: req.body.slug ?? slugify(alphaNumericNanoId(12)),
-        isTemporary: false,
-        // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-        // @ts-ignore-error this is valid ts
-        permissions: backfillPermissionV1SchemaToV2Schema(permission)
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.createAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId,
+          orgId: req.permission.orgId
+        },
+        data: {
+          actorId: req.body.identityId,
+          actorType: MembershipActors.Identity,
+          ...req.body,
+          isTemporary: false,
+          name: req.body.slug || slugify(alphaNumericNanoId(8)),
+          // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+          // @ts-ignore-error this is valid ts
+          permissions: backfillPermissionV1SchemaToV2Schema(permission)
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.body.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -106,7 +126,7 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
           IDENTITY_ADDITIONAL_PRIVILEGE.CREATE.privilegePermission
         ).optional(),
         temporaryMode: z
-          .nativeEnum(IdentityProjectAdditionalPrivilegeTemporaryMode)
+          .nativeEnum(TemporaryPermissionMode)
           .describe(IDENTITY_ADDITIONAL_PRIVILEGE.CREATE.temporaryMode),
         temporaryRange: z
           .string()
@@ -138,19 +158,39 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
           }))
         : permissions!;
 
-      const privilege = await server.services.identityProjectAdditionalPrivilege.create({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        ...req.body,
-        slug: req.body.slug ?? slugify(alphaNumericNanoId(12)),
-        isTemporary: true,
-        // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-        // @ts-ignore-error this is valid ts
-        permissions: backfillPermissionV1SchemaToV2Schema(permission)
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        orgId: req.permission.orgId,
+        slug: req.body.projectSlug
       });
-      return { privilege };
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.createAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId,
+          orgId: req.permission.orgId
+        },
+        data: {
+          actorId: req.body.identityId,
+          actorType: MembershipActors.Identity,
+          ...req.body,
+          isTemporary: true,
+          name: req.body.slug || slugify(alphaNumericNanoId(8)),
+          // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+          // @ts-ignore-error this is valid ts
+          permissions: backfillPermissionV1SchemaToV2Schema(permission)
+        }
+      });
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.body.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -183,7 +223,7 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
             ).optional(),
             isTemporary: z.boolean().describe(IDENTITY_ADDITIONAL_PRIVILEGE.UPDATE.isTemporary),
             temporaryMode: z
-              .nativeEnum(IdentityProjectAdditionalPrivilegeTemporaryMode)
+              .nativeEnum(TemporaryPermissionMode)
               .describe(IDENTITY_ADDITIONAL_PRIVILEGE.UPDATE.temporaryMode),
             temporaryRange: z
               .string()
@@ -216,18 +256,43 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
             conditions: privilegePermission.conditions
           }))
         : permissions!;
-      const privilege = await server.services.identityProjectAdditionalPrivilege.updateBySlug({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        slug: req.body.privilegeSlug,
-        identityId: req.body.identityId,
-        projectSlug: req.body.projectSlug,
+
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        orgId: req.permission.orgId,
+        slug: req.body.projectSlug
+      });
+
+      const { membershipId } = await server.services.convertor.identityIdToMembershipId(
+        req.body.identityId,
+        AccessScope.Project,
+        projectId
+      );
+
+      const { privilegeId } = await server.services.convertor.additionalPrivilegeNameToId(
+        req.body.privilegeSlug,
+        membershipId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.updateAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          actorId: req.body.identityId,
+          actorType: MembershipActors.Identity,
+          id: privilegeId
+        },
         data: {
+          ...req.body,
+          isTemporary: true,
           ...updatedInfo,
           // eslint-disable-next-line @typescript-eslint/ban-ts-comment
           // @ts-ignore-error this is valid ts
+          // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+          // @ts-ignore-error this is valid ts
           permissions: permission
             ? // eslint-disable-next-line @typescript-eslint/ban-ts-comment
               // @ts-ignore-error this is valid ts
@@ -235,7 +300,16 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
             : undefined
         }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.body.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -267,16 +341,45 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilege.deleteBySlug({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        slug: req.body.privilegeSlug,
-        identityId: req.body.identityId,
-        projectSlug: req.body.projectSlug
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        orgId: req.permission.orgId,
+        slug: req.body.projectSlug
       });
-      return { privilege };
+
+      const { membershipId } = await server.services.convertor.identityIdToMembershipId(
+        req.body.identityId,
+        AccessScope.Project,
+        projectId
+      );
+
+      const { privilegeId } = await server.services.convertor.additionalPrivilegeNameToId(
+        req.body.privilegeSlug,
+        membershipId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.deleteAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          actorId: req.body.identityId,
+          actorType: MembershipActors.Identity,
+          id: privilegeId
+        }
+      });
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.body.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -310,15 +413,45 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilege.getPrivilegeDetailsBySlug({
-        actorId: req.permission.id,
-        actorAuthMethod: req.permission.authMethod,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        slug: req.params.privilegeSlug,
-        ...req.query
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        orgId: req.permission.orgId,
+        slug: req.query.projectSlug
       });
-      return { privilege };
+
+      const { membershipId } = await server.services.convertor.identityIdToMembershipId(
+        req.query.identityId,
+        AccessScope.Project,
+        projectId
+      );
+
+      const { privilegeId } = await server.services.convertor.additionalPrivilegeNameToId(
+        req.params.privilegeSlug,
+        membershipId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.getAdditionalPrivilegeById({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          actorId: req.query.identityId,
+          actorType: MembershipActors.Identity,
+          id: privilegeId
+        }
+      });
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.query.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -349,15 +482,32 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privileges = await server.services.identityProjectAdditionalPrivilege.listIdentityProjectPrivileges({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        ...req.query
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        orgId: req.permission.orgId,
+        slug: req.query.projectSlug
       });
+
+      const { additionalPrivileges: privileges } = await server.services.additionalPrivilege.listAdditionalPrivileges({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          actorId: req.query.identityId,
+          actorType: MembershipActors.Identity
+        }
+      });
+
       return {
-        privileges
+        privileges: privileges.map((privilege) => ({
+          ...privilege,
+          identityId: req.query.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }))
       };
     }
   });
diff --git a/backend/src/ee/routes/v1/user-additional-privilege-router.ts b/backend/src/ee/routes/v1/user-additional-privilege-router.ts
index df8512ada..fa4d9a334 100644
--- a/backend/src/ee/routes/v1/user-additional-privilege-router.ts
+++ b/backend/src/ee/routes/v1/user-additional-privilege-router.ts
@@ -1,9 +1,9 @@
 import slugify from "@sindresorhus/slugify";
 import { z } from "zod";
 
+import { AccessScope, MembershipActors, TemporaryPermissionMode } from "@app/db/schemas";
 import { checkForInvalidPermissionCombination } from "@app/ee/services/permission/permission-fns";
 import { ProjectPermissionV2Schema } from "@app/ee/services/permission/project-permission";
-import { ProjectUserAdditionalPrivilegeTemporaryMode } from "@app/ee/services/project-user-additional-privilege/project-user-additional-privilege-types";
 import { PROJECT_USER_ADDITIONAL_PRIVILEGE } from "@app/lib/api-docs";
 import { ms } from "@app/lib/ms";
 import { alphaNumericNanoId } from "@app/lib/nanoid";
@@ -34,7 +34,7 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
           z.object({
             isTemporary: z.literal(true),
             temporaryMode: z
-              .nativeEnum(ProjectUserAdditionalPrivilegeTemporaryMode)
+              .nativeEnum(TemporaryPermissionMode)
               .describe(PROJECT_USER_ADDITIONAL_PRIVILEGE.CREATE.temporaryMode),
             temporaryRange: z
               .string()
@@ -55,17 +55,31 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
     },
     onRequest: verifyAuth([AuthMode.JWT]),
     handler: async (req) => {
-      const privilege = await server.services.projectUserAdditionalPrivilege.create({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        projectMembershipId: req.body.projectMembershipId,
-        ...req.body.type,
-        slug: req.body.slug || slugify(alphaNumericNanoId(8)),
-        permissions: req.body.permissions
+      const { userId, membership } = await server.services.convertor.userMembershipIdToUserId(
+        req.body.projectMembershipId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.createAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        data: {
+          actorId: userId,
+          actorType: MembershipActors.User,
+          ...req.body.type,
+          name: req.body.slug || slugify(alphaNumericNanoId(8)),
+          permissions: req.body.permissions
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: { ...privilege, userId, projectId: membership.scopeProjectId as string, slug: privilege.name }
+      };
     }
   });
 
@@ -91,7 +105,7 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
             z.object({
               isTemporary: z.literal(true).describe(PROJECT_USER_ADDITIONAL_PRIVILEGE.UPDATE.isTemporary),
               temporaryMode: z
-                .nativeEnum(ProjectUserAdditionalPrivilegeTemporaryMode)
+                .nativeEnum(TemporaryPermissionMode)
                 .describe(PROJECT_USER_ADDITIONAL_PRIVILEGE.UPDATE.temporaryMode),
               temporaryRange: z
                 .string()
@@ -113,21 +127,43 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
     },
     onRequest: verifyAuth([AuthMode.JWT]),
     handler: async (req) => {
-      const privilege = await server.services.projectUserAdditionalPrivilege.updateById({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        ...req.body,
-        ...req.body.type,
-        permissions: req.body.permissions
-          ? // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-            // @ts-ignore-error this is valid ts
-            req.body.permissions
-          : undefined,
-        privilegeId: req.params.privilegeId
+      const { membership } = await server.services.convertor.additionalPrivilegeIdToMembershipId(
+        req.params.privilegeId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.updateAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        data: {
+          ...req.body,
+          ...req.body.type,
+          permissions: req.body.permissions
+            ? // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+              // @ts-ignore-error this is valid ts
+              req.body.permissions
+            : undefined
+        },
+        selector: {
+          id: req.params.privilegeId,
+          actorId: membership.actorUserId as string,
+          actorType: MembershipActors.User
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          userId: membership.actorUserId as string,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -149,14 +185,34 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
     },
     onRequest: verifyAuth([AuthMode.JWT]),
     handler: async (req) => {
-      const privilege = await server.services.projectUserAdditionalPrivilege.deleteById({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        privilegeId: req.params.privilegeId
+      const { membership } = await server.services.convertor.additionalPrivilegeIdToMembershipId(
+        req.params.privilegeId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.deleteAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          id: req.params.privilegeId,
+          actorId: membership.actorUserId as string,
+          actorType: MembershipActors.User
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          userId: membership.actorUserId as string,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -178,14 +234,33 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
     },
     onRequest: verifyAuth([AuthMode.JWT]),
     handler: async (req) => {
-      const privileges = await server.services.projectUserAdditionalPrivilege.listPrivileges({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        projectMembershipId: req.query.projectMembershipId
+      const { userId, membership } = await server.services.convertor.userMembershipIdToUserId(
+        req.query.projectMembershipId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivileges: privileges } = await server.services.additionalPrivilege.listAdditionalPrivileges({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          actorId: userId,
+          actorType: MembershipActors.User
+        }
       });
-      return { privileges };
+
+      return {
+        privileges: privileges.map((privilege) => ({
+          ...privilege,
+          userId: membership.actorUserId as string,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }))
+      };
     }
   });
 
@@ -207,14 +282,34 @@ export const registerUserAdditionalPrivilegeRouter = async (server: FastifyZodPr
     },
     onRequest: verifyAuth([AuthMode.JWT]),
     handler: async (req) => {
-      const privilege = await server.services.projectUserAdditionalPrivilege.getPrivilegeDetailsById({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        privilegeId: req.params.privilegeId
+      const { membership } = await server.services.convertor.additionalPrivilegeIdToMembershipId(
+        req.params.privilegeId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.getAdditionalPrivilegeById({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          id: req.params.privilegeId,
+          actorId: membership.actorUserId as string,
+          actorType: MembershipActors.User
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          userId: membership.actorUserId as string,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }
+      };
     }
   });
 };
diff --git a/backend/src/ee/routes/v2/identity-project-additional-privilege-router.ts b/backend/src/ee/routes/v2/identity-project-additional-privilege-router.ts
index a6d4459e4..89d8529f9 100644
--- a/backend/src/ee/routes/v2/identity-project-additional-privilege-router.ts
+++ b/backend/src/ee/routes/v2/identity-project-additional-privilege-router.ts
@@ -1,7 +1,7 @@
 import slugify from "@sindresorhus/slugify";
 import { z } from "zod";
 
-import { IdentityProjectAdditionalPrivilegeTemporaryMode } from "@app/ee/services/identity-project-additional-privilege-v2/identity-project-additional-privilege-v2-types";
+import { AccessScope, MembershipActors, TemporaryPermissionMode } from "@app/db/schemas";
 import { checkForInvalidPermissionCombination } from "@app/ee/services/permission/permission-fns";
 import { ProjectPermissionV2Schema } from "@app/ee/services/permission/project-permission";
 import { ApiDocsTags, IDENTITY_ADDITIONAL_PRIVILEGE_V2 } from "@app/lib/api-docs";
@@ -43,7 +43,7 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
           z.object({
             isTemporary: z.literal(true),
             temporaryMode: z
-              .nativeEnum(IdentityProjectAdditionalPrivilegeTemporaryMode)
+              .nativeEnum(TemporaryPermissionMode)
               .describe(IDENTITY_ADDITIONAL_PRIVILEGE_V2.CREATE.temporaryMode),
             temporaryRange: z
               .string()
@@ -64,18 +64,31 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilegeV2.create({
-        actorAuthMethod: req.permission.authMethod,
-        actorId: req.permission.id,
-        actorOrgId: req.permission.orgId,
-        actor: req.permission.type,
-        projectId: req.body.projectId,
-        identityId: req.body.identityId,
-        ...req.body.type,
-        slug: req.body.slug || slugify(alphaNumericNanoId(8)),
-        permissions: req.body.permissions
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.createAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: req.body.projectId,
+          orgId: req.permission.orgId
+        },
+        data: {
+          actorId: req.body.identityId,
+          actorType: MembershipActors.Identity,
+          ...req.body.type,
+          name: req.body.slug || slugify(alphaNumericNanoId(8)),
+          permissions: req.body.permissions
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.body.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId: req.body.projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -108,7 +121,7 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
           z.object({
             isTemporary: z.literal(true).describe(IDENTITY_ADDITIONAL_PRIVILEGE_V2.UPDATE.isTemporary),
             temporaryMode: z
-              .nativeEnum(IdentityProjectAdditionalPrivilegeTemporaryMode)
+              .nativeEnum(TemporaryPermissionMode)
               .describe(IDENTITY_ADDITIONAL_PRIVILEGE_V2.UPDATE.temporaryMode),
             temporaryRange: z
               .string()
@@ -129,19 +142,40 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilegeV2.updateById({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        actorAuthMethod: req.permission.authMethod,
-        id: req.params.id,
+      const { membership } = await server.services.convertor.additionalPrivilegeIdToMembershipId(
+        req.params.id,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.updateAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          id: req.params.id,
+          actorId: membership.actorIdentityId as string,
+          actorType: MembershipActors.Identity
+        },
         data: {
           ...req.body,
           ...req.body.type,
           permissions: req.body.permissions || undefined
         }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: membership.actorIdentityId as string,
+          projectMembershipId: privilege.membershipId,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -171,14 +205,35 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilegeV2.deleteById({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        id: req.params.id
+      const { membership } = await server.services.convertor.additionalPrivilegeIdToMembershipId(
+        req.params.id,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.deleteAdditionalPrivilege({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          id: req.params.id,
+          actorId: membership.actorIdentityId as string,
+          actorType: MembershipActors.Identity
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: membership.actorIdentityId as string,
+          projectMembershipId: privilege.membershipId,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -208,14 +263,35 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilegeV2.getPrivilegeDetailsById({
-        actorId: req.permission.id,
-        actorAuthMethod: req.permission.authMethod,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        id: req.params.id
+      const { membership } = await server.services.convertor.additionalPrivilegeIdToMembershipId(
+        req.params.id,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.getAdditionalPrivilegeById({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: membership.scopeProjectId as string,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          id: req.params.id,
+          actorId: membership.actorIdentityId as string,
+          actorType: MembershipActors.Identity
+        }
       });
-      return { privilege };
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: membership.actorIdentityId as string,
+          projectMembershipId: privilege.membershipId,
+          projectId: membership.scopeProjectId as string,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -249,15 +325,36 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privilege = await server.services.identityProjectAdditionalPrivilegeV2.getPrivilegeDetailsBySlug({
-        actorId: req.permission.id,
-        actorAuthMethod: req.permission.authMethod,
-        actor: req.permission.type,
-        actorOrgId: req.permission.orgId,
-        slug: req.params.privilegeSlug,
-        ...req.query
+      const { id: projectId } = await server.services.convertor.projectSlugToId({
+        slug: req.query.projectSlug,
+        orgId: req.permission.orgId
       });
-      return { privilege };
+
+      const { additionalPrivilege: privilege } = await server.services.additionalPrivilege.getAdditionalPrivilegeByName(
+        {
+          permission: req.permission,
+          scopeData: {
+            scope: AccessScope.Project,
+            projectId,
+            orgId: req.permission.orgId
+          },
+          selector: {
+            name: req.params.privilegeSlug,
+            actorId: req.query.identityId,
+            actorType: MembershipActors.Identity
+          }
+        }
+      );
+
+      return {
+        privilege: {
+          ...privilege,
+          identityId: req.query.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId,
+          slug: privilege.name
+        }
+      };
     }
   });
 
@@ -288,15 +385,27 @@ export const registerIdentityProjectAdditionalPrivilegeRouter = async (server: F
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const privileges = await server.services.identityProjectAdditionalPrivilegeV2.listIdentityProjectPrivileges({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        ...req.query
+      const { additionalPrivileges: privileges } = await server.services.additionalPrivilege.listAdditionalPrivileges({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          projectId: req.query.projectId,
+          orgId: req.permission.orgId
+        },
+        selector: {
+          actorId: req.query.identityId,
+          actorType: MembershipActors.Identity
+        }
       });
+
       return {
-        privileges
+        privileges: privileges.map((privilege) => ({
+          ...privilege,
+          identityId: req.query.identityId,
+          projectMembershipId: privilege.membershipId,
+          projectId: req.query.projectId,
+          slug: privilege.name
+        }))
       };
     }
   });
diff --git a/backend/src/server/routes/v1/project-membership-router.ts b/backend/src/server/routes/v1/project-membership-router.ts
index 730f9ebe2..bcd24295d 100644
--- a/backend/src/server/routes/v1/project-membership-router.ts
+++ b/backend/src/server/routes/v1/project-membership-router.ts
@@ -5,6 +5,7 @@ import {
   ProjectMembershipRole,
   ProjectMembershipsSchema,
   ProjectUserMembershipRolesSchema,
+  TemporaryPermissionMode,
   UserEncryptionKeysSchema,
   UsersSchema
 } from "@app/db/schemas";
@@ -14,7 +15,6 @@ import { ms } from "@app/lib/ms";
 import { readLimit, writeLimit } from "@app/server/config/rateLimiter";
 import { verifyAuth } from "@app/server/plugins/auth/verify-auth";
 import { AuthMode } from "@app/services/auth/auth-type";
-import { ProjectUserMembershipTemporaryMode } from "@app/services/project-membership/project-membership-types";
 
 export const registerProjectMembershipRouter = async (server: FastifyZodProvider) => {
   server.route({
@@ -134,18 +134,34 @@ export const registerProjectMembershipRouter = async (server: FastifyZodProvider
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const membership = await server.services.projectMembership.getProjectMembershipById({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        projectId: req.params.projectId,
-        id: req.params.membershipId
+      const { userId } = await server.services.convertor.userMembershipIdToUserId(
+        req.params.membershipId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+      const membership = await server.services.membershipUser.getMembershipByUserId({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          orgId: req.permission.orgId,
+          projectId: req.params.projectId
+        },
+        selector: {
+          userId
+        }
       });
-      return { membership };
+
+      return {
+        membership: {
+          ...membership,
+          userId,
+          projectId: req.params.projectId
+        }
+      };
     }
   });
 
+  // TODO(simp): look into multi deletion and this as well
   server.route({
     method: "POST",
     url: "/:projectId/memberships/details",
@@ -317,7 +333,7 @@ export const registerProjectMembershipRouter = async (server: FastifyZodProvider
               z.object({
                 role: z.string(),
                 isTemporary: z.literal(true),
-                temporaryMode: z.nativeEnum(ProjectUserMembershipTemporaryMode),
+                temporaryMode: z.nativeEnum(TemporaryPermissionMode),
                 temporaryRange: z.string().refine((val) => ms(val) > 0, "Temporary range must be a positive number"),
                 temporaryAccessStartTime: z.string().datetime()
               })
@@ -335,17 +351,28 @@ export const registerProjectMembershipRouter = async (server: FastifyZodProvider
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.API_KEY, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const roles = await server.services.projectMembership.updateProjectMembership({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        projectId: req.params.projectId,
-        membershipId: req.params.membershipId,
-        roles: req.body.roles
+      const { userId } = await server.services.convertor.userMembershipIdToUserId(
+        req.params.membershipId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { membership } = await server.services.membershipUser.updateMembership({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          orgId: req.permission.orgId,
+          projectId: req.params.projectId
+        },
+        selector: {
+          userId
+        },
+        data: {
+          roles: req.body.roles
+        }
       });
 
-      return { roles };
+      return { roles: membership.roles.map((el) => ({ ...el, projectMembershipId: req.params.membershipId })) };
     }
   });
 
@@ -443,13 +470,22 @@ export const registerProjectMembershipRouter = async (server: FastifyZodProvider
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.API_KEY, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const membership = await server.services.projectMembership.deleteProjectMembership({
-        actorId: req.permission.id,
-        actor: req.permission.type,
-        actorAuthMethod: req.permission.authMethod,
-        actorOrgId: req.permission.orgId,
-        projectId: req.params.projectId,
-        membershipId: req.params.membershipId
+      const { userId } = await server.services.convertor.userMembershipIdToUserId(
+        req.params.membershipId,
+        AccessScope.Project,
+        req.permission.orgId
+      );
+
+      const { membership } = await server.services.membershipUser.deleteMembership({
+        permission: req.permission,
+        scopeData: {
+          scope: AccessScope.Project,
+          orgId: req.permission.orgId,
+          projectId: req.params.projectId
+        },
+        selector: {
+          userId
+        }
       });
 
       await server.services.auditLog.createAuditLog({
@@ -458,12 +494,19 @@ export const registerProjectMembershipRouter = async (server: FastifyZodProvider
         event: {
           type: EventType.REMOVE_PROJECT_MEMBER,
           metadata: {
-            userId: membership.userId,
+            userId: membership.actorUserId as string,
             email: ""
           }
         }
       });
-      return { membership };
+
+      return {
+        membership: {
+          ...membership,
+          userId,
+          projectId: req.params.projectId
+        }
+      };
     }
   });
 
diff --git a/backend/src/services/additional-privilege/additional-privilege-dal.ts b/backend/src/services/additional-privilege/additional-privilege-dal.ts
index 040fbcb0b..e3f181e44 100644
--- a/backend/src/services/additional-privilege/additional-privilege-dal.ts
+++ b/backend/src/services/additional-privilege/additional-privilege-dal.ts
@@ -1,10 +1,21 @@
 import { TDbClient } from "@app/db";
 import { TableName } from "@app/db/schemas";
-import { ormify } from "@app/lib/knex";
+import { ormify, selectAllTableCols } from "@app/lib/knex";
 
 export type TAdditionalPrivilegeDALFactory = ReturnType<typeof additionalPrivilegeDALFactory>;
 
 export const additionalPrivilegeDALFactory = (db: TDbClient) => {
   const orm = ormify(db, TableName.AdditionalPrivilege);
-  return orm;
+
+  const getMembershipById = async (privilegeId: string) => {
+    const doc = await db
+      .replicaNode()(TableName.AdditionalPrivilege)
+      .join(TableName.Membership, `${TableName.AdditionalPrivilege}.membershipId`, `${TableName.Membership}.id`)
+      .select(selectAllTableCols(TableName.Membership))
+      .where(`${TableName.AdditionalPrivilege}.id`, privilegeId)
+      .first();
+    return doc;
+  };
+
+  return { ...orm, getMembershipById };
 };
diff --git a/backend/src/services/additional-privilege/additional-privilege-service.ts b/backend/src/services/additional-privilege/additional-privilege-service.ts
index 803a581b0..465f1b47e 100644
--- a/backend/src/services/additional-privilege/additional-privilege-service.ts
+++ b/backend/src/services/additional-privilege/additional-privilege-service.ts
@@ -16,6 +16,7 @@ import {
   TCreateAdditionalPrivilegesDTO,
   TDeleteAdditionalPrivilegesDTO,
   TGetAdditionalPrivilegesByIdDTO,
+  TGetAdditionalPrivilegesByNameDTO,
   TListAdditionalPrivilegesDTO,
   TUpdateAdditionalPrivilegesDTO
 } from "./additional-privilege-types";
@@ -71,7 +72,9 @@ export const additionalPrivilegeServiceFactory = ({
         permissions: JSON.stringify(packRules(data.permissions as RawRule[]))
       });
 
-      return { additionalPrivilege: { ...additionalPrivilege, permissions: data.permissions } };
+      return {
+        additionalPrivilege: { ...additionalPrivilege, permissions: unpackPermissions(additionalPrivilege.permissions) }
+      };
     }
 
     if (!data.temporaryAccessStartTime || !data.temporaryRange) {
@@ -92,7 +95,9 @@ export const additionalPrivilegeServiceFactory = ({
       temporaryRange: data.temporaryRange
     });
 
-    return { additionalPrivilege: { ...additionalPrivilege, permissions: data.permissions } };
+    return {
+      additionalPrivilege: { ...additionalPrivilege, permissions: unpackPermissions(additionalPrivilege.permissions) }
+    };
   };
 
   const updateAdditionalPrivilege = async (dto: TUpdateAdditionalPrivilegesDTO) => {
@@ -169,7 +174,7 @@ export const additionalPrivilegeServiceFactory = ({
   const getAdditionalPrivilegeById = async (dto: TGetAdditionalPrivilegesByIdDTO) => {
     const { scopeData, selector } = dto;
     const factory = scopeFactory[scopeData.scope];
-    const { membershipId } = await factory.onListAdditionalPrivilegesGuard(dto);
+    const { membershipId } = await factory.onGetAdditionalPrivilegesByIdGuard(dto);
     const additionalPrivilege = await additionalPrivilegeDAL.findOne({
       id: selector.id,
       membershipId
@@ -182,6 +187,22 @@ export const additionalPrivilegeServiceFactory = ({
     };
   };
 
+  const getAdditionalPrivilegeByName = async (dto: TGetAdditionalPrivilegesByNameDTO) => {
+    const { scopeData, selector } = dto;
+    const factory = scopeFactory[scopeData.scope];
+    const { membershipId } = await factory.onGetAdditionalPrivilegesByIdGuard(dto);
+    const additionalPrivilege = await additionalPrivilegeDAL.findOne({
+      name: selector.name,
+      membershipId
+    });
+    if (!additionalPrivilege)
+      throw new NotFoundError({ message: `Additional privilege with name ${selector.name} doesn't exist` });
+
+    return {
+      additionalPrivilege: { ...additionalPrivilege, permissions: unpackPermissions(additionalPrivilege.permissions) }
+    };
+  };
+
   const listAdditionalPrivileges = async (dto: TListAdditionalPrivilegesDTO) => {
     const { scopeData } = dto;
     const factory = scopeFactory[scopeData.scope];
@@ -203,6 +224,7 @@ export const additionalPrivilegeServiceFactory = ({
     updateAdditionalPrivilege,
     deleteAdditionalPrivilege,
     getAdditionalPrivilegeById,
+    getAdditionalPrivilegeByName,
     listAdditionalPrivileges
   };
 };
diff --git a/backend/src/services/additional-privilege/additional-privilege-types.ts b/backend/src/services/additional-privilege/additional-privilege-types.ts
index 7c708ba06..f15c4a3c4 100644
--- a/backend/src/services/additional-privilege/additional-privilege-types.ts
+++ b/backend/src/services/additional-privilege/additional-privilege-types.ts
@@ -6,7 +6,9 @@ export interface TAdditionalPrivilegesScopeFactory {
   onUpdateAdditionalPrivilegesGuard: (arg: TUpdateAdditionalPrivilegesDTO) => Promise<{ membershipId: string }>;
   onDeleteAdditionalPrivilegesGuard: (arg: TDeleteAdditionalPrivilegesDTO) => Promise<{ membershipId: string }>;
   onListAdditionalPrivilegesGuard: (arg: TListAdditionalPrivilegesDTO) => Promise<{ membershipId: string }>;
-  onGetAdditionalPrivilegesByIdGuard: (arg: TGetAdditionalPrivilegesByIdDTO) => Promise<{ membershipId: string }>;
+  onGetAdditionalPrivilegesByIdGuard: (
+    arg: TGetAdditionalPrivilegesByIdDTO | TGetAdditionalPrivilegesByNameDTO
+  ) => Promise<{ membershipId: string }>;
   getScopeField: (scope: AccessScopeData) => { key: "orgId" | "namespaceId" | "projectId"; value: string };
 }
 
@@ -71,3 +73,13 @@ export type TGetAdditionalPrivilegesByIdDTO = {
     actorType: MembershipActors;
   };
 };
+
+export type TGetAdditionalPrivilegesByNameDTO = {
+  permission: OrgServiceActor;
+  scopeData: AccessScopeData;
+  selector: {
+    name: string;
+    actorId: string;
+    actorType: MembershipActors;
+  };
+};
diff --git a/backend/src/services/convertor/convertor-service.ts b/backend/src/services/convertor/convertor-service.ts
index 0bff1a6b5..452f517ad 100644
--- a/backend/src/services/convertor/convertor-service.ts
+++ b/backend/src/services/convertor/convertor-service.ts
@@ -1,88 +1,118 @@
+import { AccessScope } from "@app/db/schemas";
 import { NotFoundError } from "@app/lib/errors";
+
 import { TMembershipDALFactory } from "../membership/membership-dal";
 import { TProjectDALFactory } from "../project/project-dal";
-import { AccessScope, AccessScopeData } from "@app/db/schemas";
+import { TAdditionalPrivilegeDALFactory } from "../additional-privilege/additional-privilege-dal";
 
 type TConvertorServiceFactoryDep = {
   projectDAL: Pick<TProjectDALFactory, "findOne">;
   membershipDAL: Pick<TMembershipDALFactory, "findOne">;
+  additionalPrivilegeDAL: Pick<TAdditionalPrivilegeDALFactory, "getMembershipById" | "findOne">;
 };
 
 export type TConvertorServiceFactory = ReturnType<typeof convertorServiceFactory>;
 
-export const convertorServiceFactory = ({ projectDAL, membershipDAL }: TConvertorServiceFactoryDep) => {
-  const $getScopeDatabaseFields = (scopeData: AccessScopeData) => {
-    if (scopeData.scope === AccessScope.Organization) {
-      return { scopeOrgId: scopeData.orgId };
-    }
-
-    if (scopeData.scope === AccessScope.Namespace) {
-      return { scopeNamespaceId: scopeData.namespaceId, scopeOrgId: scopeData.orgId };
-    }
-
-    return { scopeProjectId: scopeData.projectId, scopeOrgId: scopeData.orgId };
-  };
-
+export const convertorServiceFactory = ({
+  projectDAL,
+  membershipDAL,
+  additionalPrivilegeDAL
+}: TConvertorServiceFactoryDep) => {
   const projectSlugToId = async (dto: { slug: string; orgId: string }) => {
     const project = await projectDAL.findOne({
       orgId: dto.orgId,
       slug: dto.slug
     });
-    if (!project) throw new NotFoundError({ message: `Project with slug ${slug} not found` });
+    if (!project) throw new NotFoundError({ message: `Project with slug ${dto.slug} not found` });
     return project;
   };
 
-  const userMembershipIdToUserId = async (scopeData: AccessScopeData, membershipId: string) => {
-    const dbFields = $getScopeDatabaseFields(scopeData);
-
+  const userMembershipIdToUserId = async (membershipId: string, scope: AccessScope, orgId: string) => {
     const membership = await membershipDAL.findOne({
-      scope: scopeData.scope,
+      scope,
       id: membershipId,
-      ...dbFields,
-      scopeOrgId: scopeData.orgId
+      scopeOrgId: orgId
     });
     if (!membership || !membership.actorUserId) {
       throw new NotFoundError({ message: `Membership with id ${membershipId} not found` });
     }
-    return membership.actorUserId;
+    return { userId: membership.actorUserId, membership };
   };
 
-  const groupMembershipIdToGroupId = async (scopeData: AccessScopeData, membershipId: string) => {
-    const dbFields = $getScopeDatabaseFields(scopeData);
-
+  const groupMembershipIdToGroupId = async (membershipId: string, scope: AccessScope, orgId: string) => {
     const membership = await membershipDAL.findOne({
-      scope: scopeData.scope,
+      scope,
       id: membershipId,
-      ...dbFields,
-      scopeOrgId: scopeData.orgId
+      scopeOrgId: orgId
     });
     if (!membership || !membership.actorGroupId) {
       throw new NotFoundError({ message: `Membership with id ${membershipId} not found` });
     }
 
-    return membership.actorGroupId;
+    return { groupId: membership.actorGroupId, membership };
   };
 
-  const identityMembershipIdToGroupId = async (scopeData: AccessScopeData, membershipId: string) => {
-    const dbFields = $getScopeDatabaseFields(scopeData);
-
+  const identityMembershipIdToIdentityId = async (membershipId: string, scope: AccessScope, orgId: string) => {
     const membership = await membershipDAL.findOne({
-      scope: scopeData.scope,
+      scope,
       id: membershipId,
-      ...dbFields,
-      scopeOrgId: scopeData.orgId
+      scopeOrgId: orgId
     });
     if (!membership || !membership.actorIdentityId) {
       throw new NotFoundError({ message: `Membership with id ${membershipId} not found` });
     }
 
-    return membership.actorIdentityId;
+    return { identityId: membership.actorIdentityId, membership };
+  };
+
+  const identityIdToMembershipId = async (identityId: string, scope: AccessScope, scopeId: string) => {
+    let fieldName = "scopeOrgId";
+    if (scope === AccessScope.Project) {
+      fieldName = "scopeProjectId";
+    } else if (scope === AccessScope.Namespace) {
+      fieldName = "scopeNamespaceId";
+    }
+
+    const membership = await membershipDAL.findOne({
+      scope,
+      actorIdentityId: identityId,
+      [fieldName]: scopeId
+    });
+
+    if (!membership) {
+      throw new NotFoundError({ message: `Identity with id ${identityId} not found` });
+    }
+
+    return { membershipId: membership.id, membership };
+  };
+
+  const additionalPrivilegeIdToMembershipId = async (privilegeId: string, scope: AccessScope, orgId: string) => {
+    const membership = await additionalPrivilegeDAL.getMembershipById(privilegeId);
+    if (!membership || membership.scope !== scope || membership.scopeOrgId !== orgId) {
+      throw new NotFoundError({ message: `Privilege with id ${privilegeId} not found` });
+    }
+
+    return { membership, membershipId: membership.id };
+  };
+  const additionalPrivilegeNameToId = async (privilegeName: string, membershipId: string) => {
+    const privilege = await additionalPrivilegeDAL.findOne({
+      name: privilegeName,
+      membershipId
+    });
+    if (!privilege) {
+      throw new NotFoundError({ message: `Privilege with slug ${privilegeName} not found` });
+    }
+
+    return { privilegeId: privilege.id, privilege };
   };
 
   return {
     projectSlugToId,
     userMembershipIdToUserId,
     groupMembershipIdToGroupId,
-    identityMembershipIdToGroupId
+    identityMembershipIdToIdentityId,
+    additionalPrivilegeIdToMembershipId,
+    additionalPrivilegeNameToId,
+    identityIdToMembershipId
   };
 };
diff --git a/backend/src/services/membership-user/membership-user-service.ts b/backend/src/services/membership-user/membership-user-service.ts
index b32606c70..c3d741a4d 100644
--- a/backend/src/services/membership-user/membership-user-service.ts
+++ b/backend/src/services/membership-user/membership-user-service.ts
@@ -274,7 +274,7 @@ export const membershipUserServiceFactory = ({
     const existingMembership = await membershipUserDAL.findOne({
       scope: scopeData.scope,
       ...scopeDatabaseFields,
-      actorUserId: dto.selector.actorId
+      actorUserId: dto.selector.userId
     });
     if (!existingMembership)
       throw new BadRequestError({
@@ -338,31 +338,31 @@ export const membershipUserServiceFactory = ({
         },
         tx
       );
-      await membershipRoleDAL.insertMany(roleDocs, tx);
-      return doc;
+      const insertedRoles = await membershipRoleDAL.insertMany(roleDocs, tx);
+      return { ...doc, roles: insertedRoles };
     });
 
-    return { memberships: membershipDoc };
+    return { membership: membershipDoc };
   };
 
   const deleteMembership = async (dto: TDeleteMembershipUserDTO) => {
     const { scopeData } = dto;
     const factory = scopeFactory[scopeData.scope];
 
-    const { actorIdOfDeletor } = await factory.onDeleteMembershipUserGuard(dto);
+    await factory.onDeleteMembershipUserGuard(dto);
 
     const scopeDatabaseFields = factory.getScopeDatabaseFields(dto.scopeData);
     const existingMembership = await membershipUserDAL.findOne({
       scope: scopeData.scope,
       ...scopeDatabaseFields,
-      actorUserId: dto.selector.actorId
+      actorUserId: dto.selector.userId
     });
     if (!existingMembership)
       throw new BadRequestError({
         message: "User doesn't have membership"
       });
 
-    if (existingMembership.actorUserId === actorIdOfDeletor)
+    if (existingMembership.actorUserId === dto.permission.id)
       throw new BadRequestError({
         message: "You can delete you own membership"
       });
@@ -403,7 +403,7 @@ export const membershipUserServiceFactory = ({
     await factory.onGetMembershipUserByUserIdGuard(dto);
     const membership = await membershipUserDAL.getUserById({
       scopeData,
-      userId: selector.actorId
+      userId: selector.userId
     });
     if (!membership) throw new NotFoundError({ message: `User membership not found` });
 
diff --git a/backend/src/services/membership-user/membership-user-types.ts b/backend/src/services/membership-user/membership-user-types.ts
index c90627402..c9c567b44 100644
--- a/backend/src/services/membership-user/membership-user-types.ts
+++ b/backend/src/services/membership-user/membership-user-types.ts
@@ -6,7 +6,7 @@ export interface TMembershipUserScopeFactory {
   onCreateMembershipComplete: (arg: { id: string; email: string }[]) => Promise<void>;
 
   onUpdateMembershipUserGuard: (arg: TUpdateMembershipUserDTO) => Promise<void>;
-  onDeleteMembershipUserGuard: (arg: TDeleteMembershipUserDTO) => Promise<{ actorIdOfDeletor: string }>;
+  onDeleteMembershipUserGuard: (arg: TDeleteMembershipUserDTO) => Promise<void>;
   onListMembershipUserGuard: (arg: TListMembershipUserDTO) => Promise<void>;
   onGetMembershipUserByUserIdGuard: (arg: TGetMembershipUserByUserIdDTO) => Promise<void>;
   getScopeField: (scope: AccessScopeData) => { key: "orgId" | "namespaceId" | "projectId"; value: string };
@@ -37,7 +37,7 @@ export type TUpdateMembershipUserDTO = {
   permission: OrgServiceActor;
   scopeData: AccessScopeData;
   selector: {
-    actorId: string;
+    userId: string;
   };
   data: {
     isActive?: boolean;
@@ -67,7 +67,7 @@ export type TDeleteMembershipUserDTO = {
   permission: OrgServiceActor;
   scopeData: AccessScopeData;
   selector: {
-    actorId: string;
+    userId: string;
   };
 };
 
@@ -75,6 +75,6 @@ export type TGetMembershipUserByUserIdDTO = {
   permission: OrgServiceActor;
   scopeData: AccessScopeData;
   selector: {
-    actorId: string;
+    userId: string;
   };
 };
diff --git a/backend/src/services/membership-user/namespace/namespace-membership-user-factory.ts b/backend/src/services/membership-user/namespace/namespace-membership-user-factory.ts
index ca3d83b00..fb2cfc463 100644
--- a/backend/src/services/membership-user/namespace/namespace-membership-user-factory.ts
+++ b/backend/src/services/membership-user/namespace/namespace-membership-user-factory.ts
@@ -63,4 +63,4 @@ export const newNamespaceMembershipUserFactory = (
     getScopeDatabaseFields,
     isCustomRole
   };
-};
\ No newline at end of file
+};
diff --git a/backend/src/services/membership-user/org/org-membership-user-factory.ts b/backend/src/services/membership-user/org/org-membership-user-factory.ts
index bdeb519f6..8465d8f57 100644
--- a/backend/src/services/membership-user/org/org-membership-user-factory.ts
+++ b/backend/src/services/membership-user/org/org-membership-user-factory.ts
@@ -67,7 +67,6 @@ export const newOrgMembershipUserFactory = ({
       dto.permission.orgId
     );
     ForbiddenError.from(permission).throwUnlessCan(OrgPermissionActions.Delete, OrgPermissionSubjects.Member);
-    return { actorIdOfDeletor: dto.permission.id };
   };
 
   const onListMembershipUserGuard: TMembershipUserScopeFactory["onListMembershipUserGuard"] = async (dto) => {
diff --git a/backend/src/services/membership-user/project/project-membership-user-factory.ts b/backend/src/services/membership-user/project/project-membership-user-factory.ts
index 703dd704b..bc860d2ad 100644
--- a/backend/src/services/membership-user/project/project-membership-user-factory.ts
+++ b/backend/src/services/membership-user/project/project-membership-user-factory.ts
@@ -134,7 +134,6 @@ export const newProjectMembershipUserFactory = ({
       actorOrgId: dto.permission.orgId
     });
     ForbiddenError.from(permission).throwUnlessCan(ProjectPermissionMemberActions.Delete, ProjectPermissionSub.Member);
-    return { actorIdOfDeletor: dto.permission.id };
   };
 
   const onListMembershipUserGuard: TMembershipUserScopeFactory["onListMembershipUserGuard"] = async (dto) => {