Auto expanding Archive import limitations of data
While migrating from on-premise Exchange/PST file/3rd party migration tools. The auto-expand archiving in it's current form is unworkable for users mailboxes with archives that are large.
It would be good if there is a mechanism to request auto-expand for selected mailboxes to be unlimited temporarily until data is migrated. Dealing with mailbox archives that are 500GB plus requires a partial move, wait for a 10GB increase then fill and repeat, which is not sustainable for organizations who want to migrate archive data.
Microsoft Ticket #:11472124 has also been raised where the response is there is not a mechanism currently to request with Microsoft to make this happen, with the platform being limited in not being able to facilitate large data import into the Archive Mailboxes.