Quick answer
A PO is a buyer’s order for defined goods/services (simple, transactional); a contract is a negotiated agreement covering terms (complex, relational) — POs for commodities, contracts for relationships.
Purchase order
Buyer-issued order — item, quantity, price, delivery; becomes a contract on acceptance; for standard goods.
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Contract
Negotiated agreement — terms, IP, liability, duration; for services, ongoing work, complex buys.
The difference
PO = transaction document; contract = relationship document — scale and terms differ.
When each
Commodities and standard items → PO; services, custom work, risk → contract.
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FAQ
Bottom line
A PO is a buyer’s order for defined goods/services (simple, transactional); a contract is a negotiated agreement covering terms (complex, relational) — POs for commodities, contracts for relationships.
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