During ODME Migration of Shared mailboxes, following error gets generated:
Error creating target session. Autodiscover
for 'User@xxxx.onmicrosoft.com' failed; the mailbox may not exist or may not be licensed:
Invalid user 'user@xxxx.onmicrosoft.com' specified.
(Autodiscover for 'user@xxxx.onmicrosoft.com' failed; the mailbox may not exist
or may not be licensed: Invalid user 'user@xxxx.onmicrosoft.com' specified. )