A purchase order (PO) is a commercial document issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services required. [1] It is used to control the purchasing of products and services from external suppliers. [2] Purchase orders can be an essential part of enterprise resource planning system orders. A purchase order (PO) is an official document that is sent from a buyer to a seller, documenting the agreement for a sale of specific products and/or services. Po (lateral thinking), part of a lateral thinking technique created by Edward de Bono Po (giant panda), daughter of Yang Yang, a giant panda at Zoo Atlanta Po (spirit), one of the elements of the spirit in ancient Chinese religion Po, a Filipino honorific expressing politeness and respect Patrouilleurs Océanique, a program of the French Navy Who provides a PO number? The buyer generates a unique P.O. number because the buyer sends the purchase order, as it is an agreement made by them to pay later for an order they are placing now. It is up to the purchasing party to create the correct paperwork and send it to the seller with all important details and essential information included. Chat with the best AI, privately or in a group chat. Explore GPT-6-Astra, Claude-Fable-5.1, Grok-4.6, Kimi-K3, GPT-5.6-Sol, and thousands of others, all on Poe. 102 definitions of PO. Meaning of PO. What does PO stand for? PO abbreviation. Define PO at AcronymFinder.com Looking for online definition of PO or what PO stands for? PO is listed in the World's most authoritative dictionary of abbreviations and acronyms What does PO mean? Are you looking for the meanings of PO? On the following image, you can see major definitions of PO. If you want, you can also download image file to print, or you can share it with your friend via Facebook, Twitter, Pinterest, Google, etc. To see all meanings of PO, please scroll down. Find USPS Locations Search for nearby Post Office™ locations, Collection Boxes, Self-Service Kiosks, and services like PO Boxes™ and Money Orders. What is a purchase order (PO)? How do purchase orders work? Step 1: Buyer creates PO with PO number assigned Step 2: Seller (supplier) approves PO Step 3: Seller issues an invoice Step 4: Purchase order matching (PO matching) Step 5: Invoice approval and payment What are the types of purchase orders?.