Hi All, Samba 4.9.2. Domain and forest level at 2008. We are trying to configure password reset through Azure AD and are encountering the following error on the server running the AD Connect tool: TrackingId: 3cad8144-fb82-4cc4-849b-31b2b43cc277, Reason: Synchronization Engine returned an error hr=80004001, message=Not implemented, Context: cloudAnchor: User_82f99156-5aff-41f1-a1c5-502f356e9039, SourceAnchorValue: 4qR5c9aR9UGAzTV1kShOgg==, UserPrincipalName: testuser at mydomain.com, Details: Microsoft.CredentialManagement.OnPremisesPasswordReset.Shared.PasswordResetException: Synchronization Engine returned an error hr=80004001, message=Not implemented at AADPasswordReset.SynchronizationEngineManagedHandle.ThrowSyncEngineError(Int32 hr) at AADPasswordReset.SynchronizationEngineManagedHandle.ChangePassword(String cloudAnchor, String sourceAnchor, String oldPassword, String newPassword) at Microsoft.CredentialManagement.OnPremisesPasswordReset.PasswordResetCredentialManager.ChangePassword(String changePasswordXMLRequestString) AD and Azure AD are configured per MS Docs: https://docs.microsoft.com/en-us/azure/active-directory/authentication/howto-sspr-writebackhttps://docs.microsoft.com/en-us/azure/active-directory/authentication/howto-sspr-deployment#implementation There is nothing in the Samba DC's logs other than showing that the test user logged into O365. Could this be related to Bug 14153 ( https://bugzilla.samba.org/show_bug.cgi?id=14153)? Thanks, Mike