The mailbox associated with the Kerberos account is moved as part of the migration process, in turn it's important to know the following:
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In addition to this list, IS&T is maintaining a page of Known Issues here.
Calendaring
As the mailbox associated with Kerberos accounts interacts with and determines where some calendars live, here's what to expect will happen to calendars attached to an account being migrated:
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Third-Party App Integration
Apps that were connected to the local Exchange mailbox may break their connection, as it has been moved to O365. This includes:
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