We have direct, on-line access to their contracts. The meaning behind this question is not too clear. On those occasions when bidders have bid on exactly what was requested by the user, nothing is gained by returning the bids to the user for review. Purchasing will usually place the order. The main reason is that more information is needed.
Some requisitions contain descriptions that are often vague.
For example a size or color may be missing. We don't do any typing. The data on the requisition is entered into the purchasing system. Some editing is done if necessary. The system will then generate a purchase order.