diff --git a/backend/src/db/migrations/20250512133213_add-external-ca-pki.ts b/backend/src/db/migrations/20250512133213_add-external-ca-pki.ts
index fd1c42f84..907022035 100644
--- a/backend/src/db/migrations/20250512133213_add-external-ca-pki.ts
+++ b/backend/src/db/migrations/20250512133213_add-external-ca-pki.ts
@@ -88,6 +88,9 @@ export async function up(knex: Knex): Promise<void> {
   if (await knex.schema.hasTable(TableName.PkiSubscriber)) {
     await knex.schema.alterTable(TableName.PkiSubscriber, (t) => {
       t.string("ttl").nullable().alter();
+      t.string("lastOperationStatus");
+      t.text("lastOperationMessage");
+      t.string("lastOperationAt");
     });
   }
 }
@@ -164,4 +167,12 @@ export async function down(knex: Knex): Promise<void> {
   if (hasExternalCATable) {
     await knex.schema.dropTable(TableName.ExternalCertificateAuthority);
   }
+
+  if (await knex.schema.hasTable(TableName.PkiSubscriber)) {
+    await knex.schema.alterTable(TableName.PkiSubscriber, (t) => {
+      t.dropColumn("lastOperationStatus");
+      t.dropColumn("lastOperationMessage");
+      t.dropColumn("lastOperationAt");
+    });
+  }
 }
diff --git a/backend/src/db/schemas/pki-subscribers.ts b/backend/src/db/schemas/pki-subscribers.ts
index 920338327..0f63d7fa8 100644
--- a/backend/src/db/schemas/pki-subscribers.ts
+++ b/backend/src/db/schemas/pki-subscribers.ts
@@ -19,7 +19,10 @@ export const PkiSubscribersSchema = z.object({
   ttl: z.string().nullable().optional(),
   keyUsages: z.string().array(),
   extendedKeyUsages: z.string().array(),
-  status: z.string()
+  status: z.string(),
+  lastOperationStatus: z.string().nullable().optional(),
+  lastOperationMessage: z.string().nullable().optional(),
+  lastOperationAt: z.string().nullable().optional()
 });
 
 export type TPkiSubscribers = z.infer<typeof PkiSubscribersSchema>;
diff --git a/backend/src/server/routes/v1/pki-subscriber-router.ts b/backend/src/server/routes/v1/pki-subscriber-router.ts
index 8de6b85e1..77fbc3a49 100644
--- a/backend/src/server/routes/v1/pki-subscriber-router.ts
+++ b/backend/src/server/routes/v1/pki-subscriber-router.ts
@@ -180,7 +180,7 @@ export const registerPkiSubscriberRouter = async (server: FastifyZodProvider) =>
         ttl: z
           .string()
           .trim()
-          .refine((val) => ms(val) > 0, "TTL must be a positive number")
+          .refine((val) => !val || ms(val) > 0, "TTL must be a positive number")
           .optional()
           .describe(PKI_SUBSCRIBERS.UPDATE.ttl),
         keyUsages: z
diff --git a/backend/src/services/certificate-authority/certificate-authority-dal.ts b/backend/src/services/certificate-authority/certificate-authority-dal.ts
index 1e81e0a05..32f053117 100644
--- a/backend/src/services/certificate-authority/certificate-authority-dal.ts
+++ b/backend/src/services/certificate-authority/certificate-authority-dal.ts
@@ -86,8 +86,8 @@ export const certificateAuthorityDALFactory = (db: TDbClient) => {
             serialNumber: result.internalSerialNumber,
             maxPathLength: result.internalMaxPathLength,
             keyAlgorithm: result.internalKeyAlgorithm,
-            notBefore: result.internalNotBefore,
-            notAfter: result.internalNotAfter,
+            notBefore: result.internalNotBefore?.toISOString(),
+            notAfter: result.internalNotAfter?.toISOString(),
             activeCaCertId: result.internalActiveCaCertId,
             certificateAuthorityId: result.internalCertificateAuthorityId
           }
@@ -232,8 +232,8 @@ export const certificateAuthorityDALFactory = (db: TDbClient) => {
               serialNumber: ca.internalSerialNumber,
               maxPathLength: ca.internalMaxPathLength,
               keyAlgorithm: ca.internalKeyAlgorithm,
-              notBefore: ca.internalNotBefore,
-              notAfter: ca.internalNotAfter,
+              notBefore: ca.internalNotBefore?.toISOString(),
+              notAfter: ca.internalNotAfter?.toISOString(),
               activeCaCertId: ca.internalActiveCaCertId,
               certificateAuthorityId: ca.internalCertificateAuthorityId
             }
diff --git a/backend/src/services/certificate-authority/certificate-authority-queue.ts b/backend/src/services/certificate-authority/certificate-authority-queue.ts
index 54b451888..192c1ae87 100644
--- a/backend/src/services/certificate-authority/certificate-authority-queue.ts
+++ b/backend/src/services/certificate-authority/certificate-authority-queue.ts
@@ -19,6 +19,7 @@ import { TAppConnectionServiceFactory } from "../app-connection/app-connection-s
 import { TCertificateBodyDALFactory } from "../certificate/certificate-body-dal";
 import { TCertificateSecretDALFactory } from "../certificate/certificate-secret-dal";
 import { TPkiSubscriberDALFactory } from "../pki-subscriber/pki-subscriber-dal";
+import { SubscriberOperationStatus } from "../pki-subscriber/pki-subscriber-types";
 import { AcmeCertificateAuthorityFns } from "./acme/acme-certificate-authority-fns";
 import { TCertificateAuthorityDALFactory } from "./certificate-authority-dal";
 import { CaType } from "./certificate-authority-enums";
@@ -47,7 +48,7 @@ type TCertificateAuthorityQueueFactoryDep = {
   certificateBodyDAL: Pick<TCertificateBodyDALFactory, "create">;
   certificateSecretDAL: Pick<TCertificateSecretDALFactory, "create">;
   queueService: TQueueServiceFactory;
-  pkiSubscriberDAL: Pick<TPkiSubscriberDALFactory, "findById">;
+  pkiSubscriberDAL: Pick<TPkiSubscriberDALFactory, "findById" | "updateById">;
 };
 
 export type TCertificateAuthorityQueueFactory = ReturnType<typeof certificateAuthorityQueueFactory>;
@@ -152,8 +153,20 @@ export const certificateAuthorityQueueFactory = ({
       try {
         if (caType === CaType.ACME) {
           await acmeFns.orderSubscriberCertificate(subscriberId);
+          await pkiSubscriberDAL.updateById(subscriberId, {
+            lastOperationStatus: SubscriberOperationStatus.SUCCESS,
+            lastOperationMessage: "Certificate ordered successfully",
+            lastOperationAt: new Date().toISOString()
+          });
+        }
+      } catch (e: unknown) {
+        if (e instanceof Error) {
+          await pkiSubscriberDAL.updateById(subscriberId, {
+            lastOperationStatus: SubscriberOperationStatus.FAILED,
+            lastOperationMessage: e.message,
+            lastOperationAt: new Date().toISOString()
+          });
         }
-      } catch (e) {
         logger.error(e, `CaOrderCertificate Failed [subscriberId=${subscriberId}] [job=${job.name}]`);
       } finally {
         await lock.release();
diff --git a/backend/src/services/certificate-authority/internal/internal-certificate-authority-schemas.ts b/backend/src/services/certificate-authority/internal/internal-certificate-authority-schemas.ts
index 5114acebe..73a6c0f0d 100644
--- a/backend/src/services/certificate-authority/internal/internal-certificate-authority-schemas.ts
+++ b/backend/src/services/certificate-authority/internal/internal-certificate-authority-schemas.ts
@@ -18,7 +18,7 @@ const InternalCertificateAuthorityConfigurationSchema = z
     organization: z.string().trim(),
     ou: z.string().trim(),
     dn: z.string().trim(),
-    parentCaId: z.string().uuid().optional(),
+    parentCaId: z.string().uuid().nullish(),
     serialNumber: z.string().trim().optional(),
     activeCaCertId: z.string().uuid().optional(),
     country: z.string().trim(),
diff --git a/backend/src/services/pki-subscriber/pki-subscriber-schema.ts b/backend/src/services/pki-subscriber/pki-subscriber-schema.ts
index c062b6406..5a0eefa57 100644
--- a/backend/src/services/pki-subscriber/pki-subscriber-schema.ts
+++ b/backend/src/services/pki-subscriber/pki-subscriber-schema.ts
@@ -12,7 +12,10 @@ export const sanitizedPkiSubscriber = PkiSubscribersSchema.pick({
   subjectAlternativeNames: true,
   ttl: true,
   keyUsages: true,
-  extendedKeyUsages: true
+  extendedKeyUsages: true,
+  lastOperationStatus: true,
+  lastOperationMessage: true,
+  lastOperationAt: true
 }).extend({
   supportsImmediateCertIssuance: z.boolean().optional()
 });
diff --git a/backend/src/services/pki-subscriber/pki-subscriber-types.ts b/backend/src/services/pki-subscriber/pki-subscriber-types.ts
index a26a36a4c..d97fbe5f5 100644
--- a/backend/src/services/pki-subscriber/pki-subscriber-types.ts
+++ b/backend/src/services/pki-subscriber/pki-subscriber-types.ts
@@ -56,3 +56,8 @@ export type TListPkiSubscriberCertsDTO = {
   offset: number;
   limit: number;
 } & TProjectPermission;
+
+export enum SubscriberOperationStatus {
+  SUCCESS = "success",
+  FAILED = "failed"
+}
diff --git a/frontend/src/hooks/api/pkiSubscriber/queries.tsx b/frontend/src/hooks/api/pkiSubscriber/queries.tsx
index 69e0e78d9..ee6791552 100644
--- a/frontend/src/hooks/api/pkiSubscriber/queries.tsx
+++ b/frontend/src/hooks/api/pkiSubscriber/queries.tsx
@@ -39,13 +39,16 @@ export const pkiSubscriberKeys = {
     ] as const
 };
 
-export const useGetPkiSubscriber = ({
-  subscriberName,
-  projectId
-}: {
-  subscriberName: string;
-  projectId: string;
-}) => {
+export const useGetPkiSubscriber = (
+  {
+    subscriberName,
+    projectId
+  }: {
+    subscriberName: string;
+    projectId: string;
+  },
+  options?: TReactQueryOptions["options"]
+) => {
   return useQuery({
     queryKey: pkiSubscriberKeys.getPkiSubscriber({ subscriberName, projectId }),
     queryFn: async () => {
@@ -59,7 +62,8 @@ export const useGetPkiSubscriber = ({
       );
       return pkiSubscriber;
     },
-    enabled: Boolean(subscriberName) && Boolean(projectId)
+    enabled: Boolean(subscriberName) && Boolean(projectId),
+    ...options
   });
 };
 
diff --git a/frontend/src/hooks/api/pkiSubscriber/types.ts b/frontend/src/hooks/api/pkiSubscriber/types.ts
index 20f7bbcc0..4f6a7c5eb 100644
--- a/frontend/src/hooks/api/pkiSubscriber/types.ts
+++ b/frontend/src/hooks/api/pkiSubscriber/types.ts
@@ -5,6 +5,11 @@ export enum PkiSubscriberStatus {
   DISABLED = "disabled"
 }
 
+export enum SubscriberOperationStatus {
+  SUCCESS = "success",
+  FAILED = "failed"
+}
+
 export type TPkiSubscriber = {
   id: string;
   projectId: string;
@@ -17,6 +22,9 @@ export type TPkiSubscriber = {
   keyUsages: CertKeyUsage[];
   extendedKeyUsages: CertExtendedKeyUsage[];
   supportsImmediateCertIssuance?: boolean;
+  lastOperationStatus?: SubscriberOperationStatus;
+  lastOperationMessage?: string;
+  lastOperationAt?: string;
 };
 
 export type TCreatePkiSubscriberDTO = {
diff --git a/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberCertificatesTable.tsx b/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberCertificatesTable.tsx
index e0ba984e6..6dbba3c19 100644
--- a/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberCertificatesTable.tsx
+++ b/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberCertificatesTable.tsx
@@ -56,7 +56,7 @@ export const PkiSubscriberCertificatesTable = ({ subscriberName, handlePopUpOpen
       limit: perPage
     },
     {
-      refetchInterval: 10 * 1000 // 10 seconds
+      refetchInterval: 5000
     }
   );
 
diff --git a/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberDetailsSection.tsx b/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberDetailsSection.tsx
index cb403b12d..3f1826892 100644
--- a/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberDetailsSection.tsx
+++ b/frontend/src/pages/cert-manager/PkiSubscriberDetailsByIDPage/components/PkiSubscriberDetailsSection.tsx
@@ -5,7 +5,14 @@ import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
 
 import { createNotification } from "@app/components/notifications";
 import { ProjectPermissionCan } from "@app/components/permissions";
-import { Button, IconButton, Modal, ModalContent, Tooltip } from "@app/components/v2";
+import {
+  Button,
+  GenericFieldLabel,
+  IconButton,
+  Modal,
+  ModalContent,
+  Tooltip
+} from "@app/components/v2";
 import {
   ProjectPermissionPkiSubscriberActions,
   ProjectPermissionSub,
@@ -19,6 +26,7 @@ import {
   useOrderPkiSubscriberCert
 } from "@app/hooks/api";
 import { pkiSubscriberStatusToNameMap } from "@app/hooks/api/pkiSubscriber/constants";
+import { SubscriberOperationStatus } from "@app/hooks/api/pkiSubscriber/types";
 import { UsePopUpState } from "@app/hooks/usePopUp";
 
 import { CertificateContent } from "../../CertificatesPage/components/CertificateContent";
@@ -45,10 +53,15 @@ export const PkiSubscriberDetailsSection = ({ subscriberName, handlePopUpOpen }:
     initialState: "Copy ID to clipboard"
   });
 
-  const { data: pkiSubscriber } = useGetPkiSubscriber({
-    subscriberName,
-    projectId
-  });
+  const { data: pkiSubscriber } = useGetPkiSubscriber(
+    {
+      subscriberName,
+      projectId
+    },
+    {
+      refetchInterval: 5000
+    }
+  );
 
   const { mutateAsync: issuePkiSubscriberCert, isPending: isIssuingCert } =
     useIssuePkiSubscriberCert();
@@ -163,9 +176,26 @@ export const PkiSubscriberDetailsSection = ({ subscriberName, handlePopUpOpen }:
           <p className="text-sm font-semibold text-mineshaft-300">Common Name</p>
           <p className="text-sm text-mineshaft-300">{pkiSubscriber.commonName}</p>
         </div>
+        {pkiSubscriber.lastOperationAt && (
+          <div className="mb-4">
+            <p className="text-sm font-semibold text-mineshaft-300">Last Operation (Local Time)</p>
+            <p className="text-sm text-mineshaft-300">
+              {new Date(pkiSubscriber.lastOperationAt).toLocaleString()}
+            </p>
+          </div>
+        )}
+        {pkiSubscriber.lastOperationStatus === SubscriberOperationStatus.FAILED && (
+          <div className="mb-4">
+            <GenericFieldLabel labelClassName="text-red" label="Last Operation Status">
+              <p className="break-words rounded bg-mineshaft-600 p-2 text-xs">
+                {pkiSubscriber.lastOperationMessage}
+              </p>
+            </GenericFieldLabel>
+          </div>
+        )}
         {canIssuePkiSubscriberCert && (
           <Button
-            className="mt-4 w-full"
+            className="mt-2 w-full"
             colorSchema="primary"
             type="button"
             isLoading={isIssuingCert}