cannot access shared folders from other companies in teams when invite is sent to alias e-mail address

Lillian Løseth Frydenlund 1 Reputation point

We have had some problems with invitations sent to aliases in stead of the mail e-mail address of our employees.
We use "short" e-mail addresses as our username and log in to teams, for example And It seems if a company invites someone from my company with (which is the long alias) to a team, there is no problem. But if you use this "long" address when you want to invite to a shared folder, it does not work. Then the person gets this error message: "you cannot access this right now, your sign-in was successful but does not meet the criteria to access this resource".
I also have a person here where it happend the other way. He has the short e-mail as his log in, and was invited to shear a folder with this short email, and he got this error message. When the other company sendt the invite to his long email, it worked.

This is a problem that has happened for at least 5 persons in our organization. Is there a solution to this?

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  1. JimmyYang-MSFT 49,886 Reputation points Microsoft Vendor

    Hi LillianFrydenlund,
    From your description, the situation with your two problematic accounts is completely different.
    In order to determine if the problem is caused by an alias, we recommend you remove the alias of the account to see if it can be accessed normally.
    Besides, are the two account in the same group? As far as I know, this can also happen if a restricted access policy is set in the group.
    There is also link that seems to prove this is related to conditional access for your reference:

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