Investigating: OneDrive to OneDrive Migrations Using Delegate Application Authentication

Update timeline

1. investigating Jul 08, 2026, 02:43 PM UTC

   We are currently investigating an issue affecting OneDrive to OneDrive migrations that use Delegate Application authentication. Customers may encounter the error message "Your migration failed while checking destination credentials" when attempting to run migrations under this configuration. Our engineering team is actively investigating the root cause. No action is required on your part at this time. We will provide updates as our investigation progresses. We apologize for any inconvenience this may cause.

2. investigating Jul 08, 2026, 03:42 PM UTC

   The root cause has been determined, and we are working to release a change to address this error shortly.

3. resolved Jul 08, 2026, 06:04 PM UTC

   We have resolved the issue affecting OneDrive to OneDrive migrations using Delegate Application authentication. Customers who previously encountered the error message "Your migration failed while checking destination credentials" should now be able to run migrations successfully. If you continue to experience issues, please resubmit your migration. If problems persist, contact our support team. We apologize for any inconvenience this may have caused.