SalesManager P2P has a product catalogue. You do not need to use this and can add any text you want for the product you wish to purchase. However, most companies with a procurement operation will work with supplier catalogues from the Specialised Suppliers or large Wholesalers. These can be imported into SalesManager P2P.
Per product you can define the suppliers and choose any one as the preferred supplier. If you want to issue a Request for Quotation, you can mail-merge in one Click a MS Word document which will email a RFQ in PDF form to all suppliers for the various products on the requisition request.