Which document confirms an order was successfully filled and sent out?

The document that confirms an order was successfully filled and sent out is the purchase order acknowledgment. This document serves as a formal response from the supplier to the buyer, indicating that the supplier has received the purchase order and is processing it. It typically includes details about the order, such as quantities, prices, and expected shipping dates.

The purchase order acknowledgment is critical for maintaining clear communication between the buyer and supplier and ensures that both parties are aligned regarding what has been ordered and what is to be delivered. It acts as a bridge between the initial order and eventual fulfillment, providing verification that the order has been accepted and is being fulfilled.

The other options do not fulfill the role of confirming the successful filling and dispatch of an order. Membership confirmation, for instance, pertains to confirming enrollment in a program or organization, while an invoice serves as a request for payment but does not necessarily indicate that the order has been filled. A price/sales catalog primarily provides information on products and their prices, not confirmation of order fulfillment.