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OWA error "OwaUserHasNoMailboxAndNoLicenseAssignedException" when opening a mailbox
When an unlicensed account with no mailbox tries to access another user’s mailbox or a shared mailbox, OWA returns a 500 error: OwaUserHasNoMailboxAndNoLicenseAssignedException or UserHasNoMailboxAndNoLicenseAssignedError. Let's look