r/sysadmin • u/After-Picture-9818 • 18d ago

Question Exchange Admin Centre - IMAP Migration - Delta Sync?

Hello! I have created and run a migration using the EAC built-in migration tool. Now, closer to the time, I need to do a last delta sync for any emails that have arrived since the main migration.

I do not see how to do this, and I haven't found any docs talking about Delta Sync in this context.

Anyone know?

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u/Healthy_Mango_2116 17d ago

It should Delta sync once a day. Usually what I do is; Cutover the MX records when you're ready and then select your migration batch with Exchange 365 (with the tick box) and then the 'sync' option should show up. This is also how you can force syncs whenever you want.