An object of the type Microsoft.SharePoint.Administration.SPWindowsServiceCredentialDeploymentJobDefinition named “windows-service-credentials-FIMSynchronizationService” already exists under the parent Microsoft.Office.Server.A...

Hi,

Got the below error while trying to change the Service Account for User Profile Service Application.

As the error suggests we need to delete the existing job definition to resolve this issue.

Open Central Administration à Monitoring

Select the service

Delete it

Now if we try changing the Service Account associated to the User Profile Synchronization Service it will work properly.

Hope it helps.