Forum Discussion
User Mailbox migrated to EXO, still no calendar in Teams
Frustrating I agree, but I think as things stand all you can do is wait I'm afraid. Not aware of anything that would speed up the process.
Hey guys,
we're currently facing this exact same issue(/behavior) while migrating a customer's exchange to the cloud.
We're using Exchange 2013 OnPrem, which of course doesn't support the Teams calendar integration. After migrating our first test user to exchange online, the calendar feature became available almost instantly.
We then migrated a few other "pilot" users and were then seeing the mentioned problems. Calendar integration is not available for somewhere between 1 and 7 days, until it finally appears in the user's Teams client (desktop aswell as browser).
The "https://testconnectivity.microsoft.com/tests/TeamsCalendarMissing/input" also shows no issues directly after migrating the mailbox.
For our customer's IT it's hard to speak to their management and tell them "We're migrating now, maybe sometime next week the calendar will be available, but we won't know for sure".