Cross-tenant mailbox migration in now in Public Preview

Hello @Georgia Huggins

Early in this thread you asked daysey  "Can you make sure the application id values on both the Org Rel and the migration endpoint match and are correct?"

Are you talking about the output of Get-OrganizationRelationship? I find that the names do not match as so:

Target Side
     Name                  : target_source_2408
     DomainNames           : {cc6c2838-b662-4f22-8bb1-7b3e98e4efdd}
     MailboxMoveEnabled    : True
     MailboxMoveCapability : Inbound
     
Source Side
     Name                  : target_source_2828
     DomainNames           : {cc6c2838-b662-4f22-8bb1-7b3e98e4efdd}
     MailboxMoveEnabled    : True
     MailboxMoveCapability : RemoteOutbound

Is this related to the OAuth errors that are blocking our progress?

(If, OTOH, you mean the GUID for the Azure application, I checked and they DO match on both the source and target.)