What Is Purchasing? Process and Procurement Differences

Purchasing is the operational work of placing approved orders, confirming receipt, checking invoices and coordinating payment to suppliers.
Purchasing manager coordinating an order, delivery, invoice and supplier payment

Purchasing is the operational activity of buying approved goods or services. It typically covers purchase-order creation, supplier confirmation, delivery or service receipt, invoice checking and payment coordination. Procurement is broader: it may also include demand planning, sourcing strategy, supplier selection, negotiation and performance management.

Where purchasing begins and ends

Purchasing should start after a business need and buying authority are clear. It ends only when the transaction record is complete enough for the organization to confirm what was ordered, received, invoiced and paid.

  1. Receive an approved request. Confirm the specification, budget, quantity and required date.
  2. Create the purchase order. State the supplier, line items, price, currency, delivery and payment terms.
  3. Obtain supplier confirmation. Resolve changes before delivery rather than after the invoice arrives.
  4. Record receipt. Capture accepted goods, services, shortages or damage.
  5. Check the invoice. Compare the invoice with the order and receipt, then investigate exceptions.
  6. Authorize payment. Pass approved details and supporting records to accounts payable.
  7. Close the order. Preserve the transaction history and any supplier-performance issue.
Purchasing compared with procurement
AreaPurchasingProcurement
Primary focusExecuting approved supplier transactionsManaging how the organization obtains external goods and services
Typical activitiesOrders, confirmations, receipts, invoice checks and payment handoffPlanning, sourcing, evaluation, negotiation, contracting and supplier management
Time horizonCurrent operational requirementCurrent and future category or supplier needs
Core recordPurchase order and matching documentsSourcing decision, contract and supplier-performance record

The record must survive a partial delivery

When a supplier confirms only part of an order, purchasing records the revised commitment, alerts the receiving team and leaves the balance open. Accounts payable can then match the invoice to what arrived. Speed gained by skipping receipt evidence is borrowed from invoice reconciliation.

Controls that keep work moving

  • Use approved suppliers and verified bank details
  • Separate request, approval and payment authority where practical
  • Give every order a traceable owner and status
  • Record changes instead of silently editing the original commitment
  • Match invoices against the order and evidence of receipt
  • Escalate price, quantity, tax or bank-detail discrepancies before payment

Quotable procurement software connects requests, approvals and supplier records. The guides to procurement and purchase orders explain the wider process and its core transaction document. For overseas suppliers, review international vendor payments.