On the enter on premises account credentials page.
Exchange mailbox migration stalled.
The response time from the source is getting high and the migration batches are getting timed out.
No it will interrupt the migration process which is already stalled.
It can take a few minutes time for a coffee but check and the process should now have resumed copyingmessages.
Error solved mailbox export stalled due to source disk latency.
Try using smaller batches.
Completing individual move requests from a migration batch.
After we run this command we can see that the state is in fact queued and not syncing as per the above screen shot naughty microsoft.
If you are reading this you have certainly noticed a stalled move request at times.
To find out the actual state of the move we need to open up the ems exchange management shell and type the following command.
It is called syncing and when the batch migration is in the final stages then it denotes its status as syncing.
The most recent stalled migration please note there are no errors on the migration job and no errors related to exchange server or the migration job in any event logs has the following message.
Select migration migrate to exchange online.
Some stalled move request errors are straight forward and highlight an existing problem.
This happens when the threshold for certain resources has been reached.
A new server or a new virtual machine is created and setup to the right specifications and all updates are applied.
But in some cases when the size of the mailbox is too large or the receiving office 365 mailbox does not have proper permissions then syncing is stalled and the migration will be stuck for an unlimited period.
There comes a time where an exchange server has done it s time and a migration to a new server is in the pipeline.
But the actual live mailbox remains on the source server until the process is successfully completed anyway.
On the select a migration type page select remote move migration as the migration type for a hybrid mailbox move.
The request has been temporarily postponed because datamovereplicationconstra int is not satisfied agent ca.
A migration between exchange server and office 365 is considered completed after all the messages from the source mailbox are transferred to the destination mailbox.
Delete the migration task and recreate.
In the top ribbon select admin and then select exchange.
On the select the users page select the mailboxes you want to move to the cloud.
This might happen if there are any issues in the disk performance causing disk latency.
Have you tried to restart the exchange server to test.
Restart the mailbox replication service.
