diff --git a/backend/src/ee/services/scim/scim-service.ts b/backend/src/ee/services/scim/scim-service.ts
index c9f2837df..84cced88f 100644
--- a/backend/src/ee/services/scim/scim-service.ts
+++ b/backend/src/ee/services/scim/scim-service.ts
@@ -594,6 +594,7 @@ export const scimServiceFactory = ({
         },
         tx
       );
+
       await orgMembershipDAL.updateById(
         membership.id,
         {
diff --git a/frontend/src/pages/organization/AccessManagementPage/components/OrgMembersTab/components/OrgMembersSection/OrgMembersTable.tsx b/frontend/src/pages/organization/AccessManagementPage/components/OrgMembersTab/components/OrgMembersSection/OrgMembersTable.tsx
index ba59b8368..a79da885b 100644
--- a/frontend/src/pages/organization/AccessManagementPage/components/OrgMembersTab/components/OrgMembersSection/OrgMembersTable.tsx
+++ b/frontend/src/pages/organization/AccessManagementPage/components/OrgMembersTab/components/OrgMembersSection/OrgMembersTable.tsx
@@ -258,7 +258,7 @@ export const OrgMembersTable = ({ handlePopUpOpen, setCompleteInviteLinks }: Pro
               </Th>
               <Th className="w-1/3">
                 <div className="flex items-center">
-                  Email
+                  Username
                   <IconButton
                     variant="plain"
                     className={`ml-2 ${orderBy === OrgMembersOrderBy.Email ? "" : "opacity-30"}`}
@@ -478,7 +478,7 @@ export const OrgMembersTable = ({ handlePopUpOpen, setCompleteInviteLinks }: Pro
                                       onClick={(e) => {
                                         e.stopPropagation();
 
-                                        if (currentOrg?.scimEnabled) {
+                                        if (currentOrg?.scimEnabled && isActive) {
                                           createNotification({
                                             text: "You cannot manage users from Infisical when org-level auth is enforced for your organization",
                                             type: "error"
diff --git a/frontend/src/pages/project/AccessControlPage/components/MembersTab/components/AddMemberModal.tsx b/frontend/src/pages/project/AccessControlPage/components/MembersTab/components/AddMemberModal.tsx
index fa4249fc4..d50baf135 100644
--- a/frontend/src/pages/project/AccessControlPage/components/MembersTab/components/AddMemberModal.tsx
+++ b/frontend/src/pages/project/AccessControlPage/components/MembersTab/components/AddMemberModal.tsx
@@ -115,8 +115,29 @@ export const AddMemberModal = ({ popUp, handlePopUpToggle }: Props) => {
         });
       } else {
         const inviteeEmails = selectedMembers
-          .map((member) => member?.user.username as string)
-          .filter(Boolean);
+          .map((member) => {
+            if (!member) return null;
+
+            if (member.user.email) {
+              return member.user.email;
+            }
+
+            if (member.user.username) {
+              return member.user.username;
+            }
+
+            return null;
+          })
+          .filter(Boolean) as string[];
+
+        if (inviteeEmails.length !== selectedMembers.length) {
+          createNotification({
+            text: "Failed to add users to project. One or more users were invalid.",
+            type: "error"
+          });
+          return;
+        }
+
         if (inviteeEmails.length || newInvitees.length) {
           await addMembersToProject({
             inviteeEmails: [...inviteeEmails, ...newInvitees],