Mailbox
Articles about migration errors when performing an Exchange Online/Microsoft 365 Mailbox migration.
- 404 Not Found
- Active Directory is unavailable. Try again later.
- Discovery services did not return a valid Exchange Web Service URL
- Error - Microsoft 365 to Microsoft 365 with Coexistence - The operation has timed out
- Error - Outlook Client connects to Microsoft 365 before cutover
- Error: Service endpoint not found
- Internal Server Transient Error
- Microsoft 365 User Names Error
- MigrationWiz - Error - Request to 'autodiscover-s.outlook.com' failed
- MigrationWiz Error - The account does not have permission to impersonate the requested user
- No Associated Mailbox SMTP Error
- No mailbox with such GUID - ErrorNonExistentMailbox
- Server Cannot Service This Account
- Token Serialization Denied - Error
- Unable to connect to the remote server
- Updating Calendar Events Post-Migration