Trying to give the new tool a test; trying to "Add Org" and I run into error "Failed to get folder permissions. The SMTP address has no mailbox associated with it.".
I am using an account that has Office 365/Exchange Online "admin" access but does not have a mailbox in O365 (the mailbox is on-premise). Does it only work with accounts that have O365 mailbox?
This works now, it boiled down to needing to use a Office 365 account who's mailbox is in the cloud instead of using a on-premise exchange account which has its account (AADSync) in the O365 cloud.
For anyone else that may run into this, need to use an account who's mailbox is in the cloud, the AD account can still be synced with on-premise Active Directory; but the mailbox must reside in the cloud.
Kostya, the link you mentioned is a separate issue/feature request (I will update that shortly now that I got this part to work).
I have been able to add two tenants earlier with an Admin-account that does not have a mailbox, but I am not able to do this anymore. Has something changed requiring the account used to have a mailbox?
Unless you have changed a version in between, we didn't change anything... Can you tell us if something was changed at your side? Different installation / different user maybe?