Scenario:
- Migrating from Exchange to Exchange Online.
- Migration completed successfully
- The source mail domain and the target mail domain are the same
- You can't switch the autodiscover records to Exchange Online
until the project completes because otherwise mailbox(s) not yet migrated should stop working.
Also some errors get generated as follows:
Cannot create a CPUU switch message. Reason: Cannot retrieve required settings
for the CPUU profile switch from the 'first.last@company.com' target
using the Autodiscover service.
Failed to update the Outlook Profile for CPUU on Source mailbox first.last@company.com
Target mailbox first.last@company.com.(The Autodiscover service couldn't be located.)