In this article, will discuss some workarounds to fix Transient error “StaticCapacityExceededReservationException”
The Transient error “StaticCapacityExceededReservationException” occurs when migrating or upgrading Exchange from 2013 to 2016 or 2019.
Here are some workarounds for Transient error StaticCapacityExceededReservationException
Solution 1: Sometime the error goes away after a long delay.
Solution 2: Try to restart all the the exchange nodes and services.
Solution 3: Try to move mailboxes to a another mailbox database and do the migration again.
Note: Try to increase the mailbox quota if it will not move it to another mailbox database.
Solution 4: A Transient Error can be corrupt items or items too large for migration.
Try this solution to particular mailbox and see if it works.
Firstly, you have to remove all migration request, and then use command below try to repair this mailbox:
New-MailboxRepairRequest -Mailbox ayla -CorruptionType ProvisionedFolder,SearchFolder,AggregateCounts,Folderview
After that try to migrate this mailbox separately:
New-MoveRequest -Identity 'firstname.lastname@example.org' -TargetDatabase "DBEX01"
Hope the above given solutions help you to fix Transient error StaticCapacityExceededReservationException.