If you want Inform to manage manufacturer rep commissions, you must set up the Branch and the Vendor.
Under File > Vendor > Master, you must set up the vendor who will be responsible for customer collection as a Consignment Vendor, with a Rep Commission % and Rep Product Number. This vendor must then be set up as the vendor consignment for the branch. See below.
Under File > Company > Branch, set up a Vendor Consignment and make sure the Update Invoice to A/R check box is cleared. For more information on branch setup, see Set up branch level vendor consignments.