diff --git a/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.test.ts b/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.test.ts
index 4ceadd51ba..ded26c59e5 100644
--- a/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.test.ts
+++ b/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.test.ts
@@ -128,6 +128,19 @@ describe('GheAuth AuthSessionStore', () => {
     expect(manager.removeSession).toHaveBeenCalled();
   });
 
+  it('should set session', async () => {
+    const manager = new MockManager();
+    const store = new AuthSessionStore({ manager, ...defaultOptions });
+
+    await expect(store.getSession({ optional: true })).resolves.toBe(undefined);
+    expect(localStorage.getItem('my-key')).toBe(null);
+    expect(manager.setSession).not.toHaveBeenCalled();
+    store.setSession('123');
+    expect(manager.setSession).toHaveBeenCalled();
+    expect(localStorage.getItem('my-key')).toBe('"123"');
+    await expect(store.getSession({ optional: true })).resolves.toBe('123');
+  });
+
   it('should forward sessionState calls', () => {
     const manager = new MockManager();
     const store = new AuthSessionStore({ manager, ...defaultOptions });
diff --git a/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.ts b/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.ts
index 057a70e58d..fc15da7af8 100644
--- a/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.ts
+++ b/packages/core-app-api/src/lib/AuthSessionManager/AuthSessionStore.ts
@@ -15,7 +15,6 @@
  */
 
 import {
-  SessionManager,
   MutableSessionManager,
   SessionScopesFunc,
   SessionShouldRefreshFunc,
@@ -40,7 +39,7 @@ type Options<T> = {
  *
  * Session is serialized to JSON with special support for following types: Set.
  */
-export class AuthSessionStore<T> implements SessionManager<T> {
+export class AuthSessionStore<T> implements MutableSessionManager<T> {
   private readonly manager: MutableSessionManager<T>;
   private readonly storageKey: string;
   private readonly sessionShouldRefreshFunc: SessionShouldRefreshFunc<T>;
@@ -63,6 +62,11 @@ export class AuthSessionStore<T> implements SessionManager<T> {
     });
   }
 
+  setSession(session: T | undefined): void {
+    this.manager.setSession(session);
+    this.saveSession(session);
+  }
+
   async getSession(options: GetSessionOptions): Promise<T | undefined> {
     const { scopes } = options;
     const session = this.loadSession();