stalledduetotarget_mdbavailability Office 365 migration error

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Updated onOctober 4, 2023

updated onOctober 4, 2023

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ThestalledDueToTarget_MdbAvailabilitystatus you’re seeing is such a buzz kill. Maybe you were moving mailboxes fromExchange 2010to Exchange 2016 using migration batch in EAC and finally noticed that some mailboxes take a long time to complete migration.

Others describe getting the samestalledDueToTarget_MdbAvailabilitymigration error message when transferring a mailbox fromExchange 2013toExchange Onlineand examples may continue.

This is often an indicative of a target database issue. That’s where you’re moving the mailbox to, and it should be an active copy.

There are instances when no unique solution can be given. In this short guide, we’ll though make sure there’s something you can do to fix this.

How can I fix stalledduetotarget_mdbavailability error?

1. Move a single mailbox by using the New-MoveRequest

For troubleshooting this migration error, you should first try to move a single mailbox by using theNew-MoveRequest. Don’t hesitate to specify the target mailbox as a new one.

This should work if the issue was indeed caused by a database copy.

2. Increase the number of simultaneous mailbox moves

If you see the migrationerrorafter successfully moving a few mailboxes, then it may be caused by a limit for the number of simultaneous mailbox moves.

Increase it by modifying some parameters’ value in MSExchangeMailboxReplication.exe.config file.

3. Microsoft Office 365 Support

In case the issue still persists even after performing the steps listed above, then create a ticket withinMicrosoft Office 365Support. Other users did the same and the support team suspected it could be an issue with Throttling.

They have decreased the throttling thus solved the problem.

You can always use a third-party email client program that supports Exchange to access and manage your mailboxes. The software will allow you to connect to your Exchange account with your email address and password. In case it won’t be able to detect your server details automatically, you will have to enter them as well in order to use the email client program.

⇒Get Mailbird

Make sure that this stalledduetotarget_mdbavailabilityOffice 365migrationerrorisn’t here to stay! Just apply the above tips one by one. For those whom we’ve helped, spread the word as others face the same issue too.

stalledduetotarget_mdbavailability Office 365 migration error#

How can I fix stalledduetotarget_mdbavailability error?#

1. Move a single mailbox by using the New-MoveRequest#

2. Increase the number of simultaneous mailbox moves#

3. Microsoft Office 365 Support#

stalledduetotarget_mdbavailability Office 365 migration error

How can I fix stalledduetotarget_mdbavailability error?

1. Move a single mailbox by using the New-MoveRequest

2. Increase the number of simultaneous mailbox moves

3. Microsoft Office 365 Support