Is a purchase order the same as a requisition or quote?

No. A requisition is commonly used for an internal request related to a purchase, while a quote is an offer from a seller. These terms can be related but do not determine a process or transaction for a particular business.

Does a purchase order determine whether a purchase is binding or payable?

No. Whether a purchase order or transaction is valid, binding, approved, complete, payable, or appropriate depends on context. This glossary does not provide legal, procurement, payment, accounting, or tax advice.

Operations glossary

A purchase order names what a buyer intends to purchase.

Q: What is a purchase order?

A purchase order, or PO, is a document a buyer issues to identify an intended purchase from a seller. It may include items or services, quantities, price, and terms. A glossary definition does not create, approve, or validate a purchase order.

This definition explains the document, how it relates to requisitions and quotes, and why those words do not determine a purchase or contract for a particular business.

A purchase order (PO) is a document a buyer issues to identify an intended purchase from a seller. It may include items or services, quantities, price, and terms. Read the GW procurement glossary.

Three related terms

These terms may appear together, but they point to different documents or stages. Knowing the distinction can clarify language without choosing a supplier, process, or transaction outcome.

Purchase order (PO)

A buyer-issued document that identifies an intended purchase. It may name items or services, quantities, price, and terms.

Requisition

A written internal request related to an authorized purchase. A requisition is not necessarily a purchase order.

Quote

An offer from a seller for a good or service. A quote is not necessarily a purchase order.

Why context matters

“Purchase order” is a document label, not a decision.

The important distinction

A glossary defines the term. It does not approve a purchase.

Organizations may use similar documents while following different internal controls, supplier arrangements, contracts, tax treatment, systems, records, and review processes. The label alone does not settle what should be purchased or whether a document is complete.

Connected terms do not point to one universal process.

Institutional procurement glossaries describe a PO as a buyer-issued document and distinguish it from an internal requisition and a seller’s quote. The same sources explain that terms and conditions can matter in a particular purchasing context. This page names that vocabulary; it does not turn it into a workflow or legal conclusion.

A source note

Common language helps a team describe a document.

It does not determine the document’s effect.

Keep the term and the transaction separate.

GW describes a purchase order as a buyer-issued document that authorizes a purchase and identifies governing terms, quantity, and price. USNH describes a PO as a buyer-to-seller commercial document that may identify types, quantities, scope, agreed prices, and applicable terms. Those references clarify vocabulary; they cannot determine whether a particular PO, quote, requisition, contract, or transaction is valid, binding, approved, complete, payable, or appropriate.

Glossary boundary: This page does not provide a purchase-order workflow, legal interpretation, procurement recommendation, or transaction decision.

What this glossary does not decide

This educational definition does not create, issue, send, approve, accept, amend, or cancel a purchase order; determine whether a PO, requisition, quote, contract, term, quantity, price, tax, delivery commitment, signature, record, supplier, or transaction is valid, binding, approved, complete, correct, payable, compliant, or appropriate; select a supplier, item, term, price, tax treatment, payment, or action; validate a record, invoice, receipt, delivery, price, or match; or provide legal, regulatory, financial, accounting, tax, procurement, contracting, payment, supplier, inventory, quality, food-safety, retailer, or operational advice.

Source note

References for the terminology

These sources support the language on this page. They are not a substitute for a business’s own qualified reviewers, counterparties, records, or applicable authorities.

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