Your attempt to assign a license plan option to a user in Microsoft Office 365 may fail.
This issue occurs when you use Quick Connect for Cloud Services in the following scenarios:
Your Microsoft Office 365 environment has two or more license plans.
Your Microsoft Office 365 environment has only one license plan, and that license plan is NOT “Microsoft Office 365 Plan E3”.
Install Quick Connect for Cloud Services version 3.3.0, because the issue in question was fixed in that version of the product.