Error: MigrationMRSPermanentException: Error: Resource 'CiAgeOfLastNotification(DBname)' is unhealthy and shouldn't be accessed.

Question

hello, Am unable to migrate mailbox from on-prem to exchange online. I got the following error: MigrationMRSPermanentException: Error: Resource 'CiAgeOfLastNotification(DBname)' is unhealthy and shouldn't be accessed.

Answer 1

Dear Grenn S90,

Good day! Thank you for posting to Microsoft Community. We are happy to help you.

Based on your description, I understand that you have a query "Error: MigrationMRSPermanentException: Error: Resource 'CiAgeOfLastNotification(DBname)' is unhealthy and shouldn't be accessed."

According to the error message you are getting, the official article; Resource ‎CiAgeOfLastNotification‎ is unhealthy - Exchange | Microsoft Learn says that, to resolve this issue, you must follow these steps:

1. Rebuild the content index catalog on the on-premises Exchange server. For more information about how to do this, see Reseed the search catalog.
2. After the index catalog is rebuilt, wait a few minutes until the fast engine starts indexing again.
3. Determine whether indexing is completed. To do this, run the Get-MailboxDatabaseCopyStatus cmdlet. If indexing is completed, the value in the output should show as Healthy.

After indexing is completed, perform the mailbox move request.

We look forward to hearing from you; Please understand that our initial reply may not always immediately resolve the issue. However, with your help and more detailed information, we can work together to find a solution. Thank you for your cooperation.

Sincerely,

De Paul | Microsoft Community Moderator

Answer 2

Thank you Paul, this helped me fixing my issue!