On the select the users page select the mailboxes you want to move to the cloud.
Exchange mailbox migration stalled.
Have you tried to restart the exchange server to test.
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.
The response time from the source is getting high and the migration batches are getting timed out.
A new server or a new virtual machine is created and setup to the right specifications and all updates are applied.
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.
If you are reading this you have certainly noticed a stalled move request at times.
Try using smaller batches.
To find out the actual state of the move we need to open up the ems exchange management shell and type the following command.
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.
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.
Completing individual move requests from a migration batch.
No it will interrupt the migration process which is already stalled.
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.
Small batch migration could be the best approach to deal in such situation.
Some stalled move request errors are straight forward and highlight an existing problem.
It can take a few minutes time for a coffee but check and the process should now have resumed copyingmessages.
In the top ribbon select admin and then select exchange.
Delete the migration task and recreate.
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.
This might happen if there are any issues in the disk performance causing disk latency.
On the enter on premises account credentials page.
Exchange 2016 we have cu8 in place utilizes throttling on move requests as well.
This happens when the threshold for certain resources has been reached.
This delays the movement of the mailboxes.
Restart the mailbox replication service.
