There is an alternatively way to specify the right for users to review invoices. If you do not want to start out from the different user you can instead make your selections based on the supplier and from there determine which users that should be able to view the specific supplier's invoices. In the Update Supplier procedure under the Address/Terms tab there is a button called Authorization EIM. By using this button you can select the different users that always should have access to review the invoices for the company in question.
Authorization EIM.
Please Note! It is only the users that are marked with an asterisk (*) that are registered as users in the EIM database.