Which form is filled out by the buyer during the purchasing process?

The purchase requisition is the correct answer because it is a document generated by the buyer to indicate a need for goods or services. It serves as an internal request that provides necessary details such as descriptions, quantities, and the purpose of the purchase. This form is typically used within organizations to obtain approval from management or the purchasing department before placing an order.

The purchase order, in contrast, is filled out by the buyer after the requisition has been approved and is sent to the supplier to confirm the details of the order. An invoice is generated by the seller and sent to the buyer after the goods or services have been delivered, detailing the amount owed. A contract agreement may outline the terms and conditions of a transaction but is usually established prior to or concurrently with a purchase order, and not specifically filled out by the buyer during the purchasing process itself.