Fix Exchange Hybrid Migration Stuck at Synced with Domain Controller Error
Question details
The user needs to complete an Exchange hybrid mailbox migration that remains stuck in Synced status and is not automatically marked as completed.
- Product
- Microsoft Exchange Server 2013 Hybrid migration
- Device & OS
- not provided
- Scenario
- An Exchange hybrid mailbox migration finished data synchronization but the migration batch stays in Synced status and reports a MigrationTransientException about changed domain controllers.
- Observed behavior
- The migration batch remains Synced instead of Completed, and the error states that the current set of domain controllers changed.
Confirm you can open the Exchange Admin Center with migration permissions and identify the affected migration batch before you complete or remove it.
Complete the Hybrid Migration Batch Manually After Synchronization
Use this when the mailbox data has synchronized successfully but the batch remains in Synced status and is not automatically completed.
Exchange hybrid migrations can remain in Synced after the mailbox data is copied. A Synced migration batch is not automatically marked as Completed, so you must complete it manually when the option becomes available.
In Exchange Admin Center, go to Recipients > Migration and select the migration batch that is stuck in Synced status.
Confirm that the mailbox type is correct and that synchronization completed without errors. If the batch shows Synced and the Complete this migration batch option is available, continue.
Select Complete this migration batch to finalize the mailbox migration and change the status to Completed.
After completion, select the migration batch and remove it if it is no longer needed for reporting or cleanup.
Check Detailed Move Request Status with Exchange Management Shell
Use this when the migration batch remains stuck and you need to see detailed per-mailbox status, transient errors, or progress.
Use WPS Office for Document Work While You Troubleshoot Exchange Hybrid Migration
WPS Office does not resolve Microsoft Exchange hybrid mailbox migration errors, but it provides a free, lightweight Microsoft Office alternative for Word, Excel, and PowerPoint documents, with full format compatibility and a familiar interface so you can keep working while your Exchange migration batch is resolved.
- 1. Download WPS Office: Go to the WPS Office download page and click Download WPS Office Free.
- 2. Open your Microsoft Office files: Launch WPS Office and open .docx, .xlsx, or .pptx files created in Microsoft Office.
- 3. Keep working in Microsoft-compatible formats: Use WPS Writer, Spreadsheet, and Presentation to create, edit, and save documents without losing Microsoft Office format compatibility.
Frequently Asked Questions
Why is my Exchange hybrid migration batch stuck in Synced instead of Completed?
A Synced migration is not automatically marked as Completed in a hybrid Exchange migration. You need to verify synchronization and use Exchange Admin Center > Recipients > Migration to select Complete this migration batch when it becomes available.
How do I complete a hybrid migration batch that is stuck at Synced?
Open Exchange Admin Center, go to Recipients > Migration, select the batch, confirm that synchronization completed without errors, and then click Complete this migration batch. Remove the batch afterward if it is no longer needed.
What does the MigrationTransientException about changed domain controllers mean?
It indicates that the migration encountered a transient change in the set of domain controllers during synchronization. Check the underlying move request with Get-MoveRequest and Get-MoveRequestStatistics, then retry or complete the batch after confirming synchronization.
Which tools can I use to check detailed Exchange hybrid migration status?
Use Exchange Management Shell cmdlets Get-MoveRequest and Get-MoveRequestStatistics to see the mailbox move status, percent complete, and detailed error messages when the migration batch remains stuck.
What should I do after the Exchange hybrid migration batch is completed?
After the batch shows Completed, remove the migration batch from Exchange Admin Center if it is no longer needed to keep the migration view clean.
