We recently migrated one dept to office365 from on-premise Exchange
Migration was successful and all seems to be OK as far as recieving emails is concerned.
We have noticed one thing however - with calendar updates.
So if a migrated user has been invited in a calendar entry, and the entry is changed by an on-premise user, the office365 user does not get a notification, nor does their calendar show the change.
I presume I have missed out a step, and as such need some help.
Steps we took for migration as follows:
Created users on Office 365
exported mail from on-premise mailbox to office 365 (we exported to PST and re-imported from PST to office 365 mailbox)
Deleted on-premise mailboxes.
Any help will be appreciated.