diff --git a/lib/js-api/src/alfrescoApi.ts b/lib/js-api/src/alfrescoApi.ts
index bee57b4e3e..f7cf9c4f32 100644
--- a/lib/js-api/src/alfrescoApi.ts
+++ b/lib/js-api/src/alfrescoApi.ts
@@ -79,6 +79,7 @@ export class AlfrescoApi implements Emitter, AlfrescoApiType {
         this.clientsFactory();
 
         this.errorListeners();
+        this.ticketMismatchListeners();
         if (this.config.oauthInit) {
             this.initAuth(config);
 
@@ -132,6 +133,10 @@ export class AlfrescoApi implements Emitter, AlfrescoApiType {
                 this.emitBuffer('logged-in');
             });
 
+            this.processAuth?.on('ticket_mismatch', (error: any) => {
+                this.ticketMismatchHandler(error);
+            });
+
             if (!this.contentAuth) {
                 this.contentAuth = new ContentAuth(this.config, this, this.httpClient);
             } else {
@@ -142,6 +147,10 @@ export class AlfrescoApi implements Emitter, AlfrescoApiType {
                 this.emitBuffer('logged-in');
             });
 
+            this.contentAuth?.on('ticket_mismatch', (error: any) => {
+                this.ticketMismatchHandler(error);
+            });
+
             this.setAuthenticationClientECMBPM(this.contentAuth.getAuthentication(), this.processAuth.getAuthentication());
         }
     }
@@ -240,6 +249,19 @@ export class AlfrescoApi implements Emitter, AlfrescoApiType {
         });
     }
 
+    ticketMismatchListeners() {
+        this.contentClient?.off('ticket_mismatch', () => {});
+        this.processClient?.off('ticket_mismatch', () => {});
+
+        this.contentClient?.on('ticket_mismatch', (error: any) => {
+            this.ticketMismatchHandler(error);
+        });
+
+        this.processClient?.on('ticket_mismatch', (error: any) => {
+            this.ticketMismatchHandler(error);
+        });
+    }
+
     /**@private? */
     errorHandler(error: { status?: number }) {
         if (this.config.oauthInit && error.status === 401) {
@@ -249,6 +271,15 @@ export class AlfrescoApi implements Emitter, AlfrescoApiType {
         this.emitBuffer('error', error);
     }
 
+    ticketMismatchHandler(error: { newTicket?: string }) {
+        if (error.newTicket) {
+            this.config.ticketEcm = error.newTicket;
+            this.initConfig(this.config);
+        }
+
+        this.emitBuffer('ticket_mismatch', error);
+    }
+
     changeWithCredentialsConfig(withCredentials: boolean) {
         this.config.withCredentials = withCredentials;
     }
diff --git a/lib/js-api/src/alfrescoApiClient.ts b/lib/js-api/src/alfrescoApiClient.ts
index ba956f8ca1..e3b4edc19f 100644
--- a/lib/js-api/src/alfrescoApiClient.ts
+++ b/lib/js-api/src/alfrescoApiClient.ts
@@ -243,10 +243,18 @@ export class AlfrescoApiClient implements ee.Emitter, LegacyHttpClient {
 
         if (ticket) {
             return ticketParam + ticket;
-        } else if (this.config.ticketEcm) {
-            return ticketParam + this.config.ticketEcm;
-        } else if (this.storage.getItem('ticket-ECM')) {
-            return ticketParam + this.storage.getItem('ticket-ECM');
+        } else {
+            const ticketConfig = this.config.ticketEcm;
+            const ticketStorage = this.storage.getItem('ticket-ECM');
+
+            if (ticketConfig && ticketStorage && ticketConfig !== ticketStorage) {
+                this.emit('ticket_mismatch', { newTicket: ticketStorage });
+                return ticketParam + ticketStorage;
+            } else if (ticketConfig) {
+                return ticketParam + ticketConfig;
+            } else if (ticketStorage) {
+                return ticketParam + ticketStorage;
+            }
         }
 
         return '';
diff --git a/lib/js-api/test/alfrescoApi.spec.ts b/lib/js-api/test/alfrescoApi.spec.ts
index 20e3a88273..dfa7eb99b6 100644
--- a/lib/js-api/test/alfrescoApi.spec.ts
+++ b/lib/js-api/test/alfrescoApi.spec.ts
@@ -62,6 +62,39 @@ describe('Basic configuration test', () => {
         });
     });
 
+    describe('ticket mismatch', () => {
+        it('should update config ticketEcm on ticket_mismatch event', (done) => {
+            // Tickets
+            const mockStorageTicket = 'storage-ticket';
+            const mockConfigTicket = 'config-ticket';
+
+            // Create a mock storage
+            const storageContent = { 'ticket-ECM': mockStorageTicket };
+            const mockStorage = { getItem: (key: string) => storageContent[key] };
+
+            // Initialize AlfrescoApi instance (without ticketEcm to prevent validateTicket from being called at this point)
+            const alfrescoApi = new AlfrescoApi({ authType: 'BASIC' });
+
+            // Initializes configuration and storage
+            alfrescoApi.config.ticketEcm = mockConfigTicket;
+            alfrescoApi.contentClient.config.ticketEcm = mockConfigTicket;
+            alfrescoApi.contentClient.storage = mockStorage as any;
+
+            // Ensure alfrescoApi and contentClient have the config ticket
+            assert.equal(alfrescoApi.config.ticketEcm, mockConfigTicket);
+            assert.equal(alfrescoApi.contentClient.config.ticketEcm, mockConfigTicket);
+
+            alfrescoApi.on('ticket_mismatch', () => {
+                // As the ticket mismatch event is triggered, the ticketEcm should now be the one from storage
+                assert.equal(alfrescoApi.config.ticketEcm, mockStorageTicket);
+                assert.equal(alfrescoApi.contentClient.config.ticketEcm, mockStorageTicket);
+                done();
+            });
+
+            alfrescoApi.contentClient.getAlfTicket(undefined);
+        });
+    });
+
     describe('setconfig parameter ', () => {
         it('should be possible change the host in the client', () => {
             const config = {
diff --git a/lib/js-api/test/alfrescoApiClient.spec.ts b/lib/js-api/test/alfrescoApiClient.spec.ts
index b7344b62f1..28d097b386 100644
--- a/lib/js-api/test/alfrescoApiClient.spec.ts
+++ b/lib/js-api/test/alfrescoApiClient.spec.ts
@@ -16,7 +16,7 @@
  */
 
 import assert from 'assert';
-import { AlfrescoApi, DateAlfresco } from '../src';
+import { AlfrescoApi, AlfrescoApiClient, DateAlfresco } from '../src';
 import { EcmAuthMock } from './mockObjects';
 
 describe('Alfresco Core API Client', () => {
@@ -76,4 +76,37 @@ describe('Alfresco Core API Client', () => {
             assert.equal(equalTime(DateAlfresco.parseDate('2015-11-17T03:33:17+02'), new Date(Date.UTC(2015, 10, 17, 1, 33, 17))), true);
         });
     });
+
+    describe('Alfresco Api Client getAlfTicket', () => {
+        // Tickets
+        const alfTicketParam = '&alf_ticket=';
+        const mockArgTicket = 'arg-ticket';
+        const mockStorageTicket = 'storage-ticket';
+        const mockConfigTicket = 'config-ticket';
+
+        // Create a mock storage
+        const storageContent = { 'ticket-ECM': mockStorageTicket };
+        const mockStorage = { getItem: (key: string) => storageContent[key] };
+
+        let alfrescoApiClient: AlfrescoApiClient;
+
+        beforeEach(() => {
+            // Create an instance of AlfrescoApiClient with storage and config
+            alfrescoApiClient = new AlfrescoApiClient();
+            alfrescoApiClient.storage = mockStorage as any;
+            alfrescoApiClient.config = { ticketEcm: mockConfigTicket };
+        });
+
+        it('should return the supplied ticket', () => {
+            const ticket = alfrescoApiClient.getAlfTicket(mockArgTicket);
+            const expectedResult = alfTicketParam + mockArgTicket;
+            assert.equal(ticket, expectedResult);
+        });
+
+        it('should return the ticket from storage', () => {
+            const ticket = alfrescoApiClient.getAlfTicket(undefined);
+            const expectedResult = alfTicketParam + mockStorageTicket;
+            assert.equal(ticket, expectedResult);
+        });
+    });
 });