PROCURE TO PAY · COMMIT
What does a purchase order control?
The purchase order is the controlled commercial commitment sent to a supplier and the operational reference for receipt, invoice verification, and liability settlement.
PROCESS ROLE
The PO makes the supplier commitment executable
Supplier, purchasing organization, company code, plant, item, quantity, price, tax, delivery schedule, incoterms, account assignment, and output status define what both parties are expected to perform.
OPERATIONAL FLOW
What happens in SAP
Read the sequence as one connected business event, not as isolated transactions.
Adopt approved demand and source
The PO can reference a requisition, contract, quotation, or another approved source while preserving the origin of quantities and terms.
Apply purchasing rules
Document and item categories, partner data, pricing conditions, tax, tolerances, and messages shape document behavior.
Authorize the commitment
Workflow applies the relevant approval path and controls whether consequential changes require a new decision.
Send and monitor the order
Approved output reaches the supplier; confirmations, acknowledgements, dates, open quantities, and change messages remain visible.
DESIGN & CONTROL
What shapes the result
These controls work together; a locally correct setting can still produce the wrong end-to-end outcome.
Document and item structure
Document type, item category, account assignment, confirmation control, number range, and field selection define the purchasing contract. Stock, service, subcontracting, consignment, and stock-transfer items require different behavior.
Follow-on indicators and tolerances
Goods-receipt required, non-valuated receipt, GR-based invoice verification, delivery-complete, final-invoice, condition schema, planned delivery costs, and quantity tolerances shape receipt, commitment, and invoice behavior.
Change and output control
Workflow restart, change versions, message determination or output management, acknowledgement, and delivery-completion rules preserve an authorized commitment.
DIAGNOSTIC EVIDENCE
Prove what the supplier was authorized to deliver
The PO must explain its source, approved value, delivery expectation, accounting destination, communication status, and open commitment.
Document type, supplier, organization, item and account assignment, plant, schedules, tolerances, and confirmation control.
Condition analysis, tax, currency, terms, source reference, approval status, and controlled changes.
Output, acknowledgement, goods receipt, service entry, invoice, delivery completion, final invoice, and remaining commitment.
PROJECT MOMENT
Ten motors committed against a valid contract
The buyer converts the approved requisition, adopts the contract price and delivery terms, receives the required approval, and transmits a PO that permits partial delivery but not an unexplained price increase.
- Reference chain is intact
- Price is explainable
- Authority is complete
- Supplier output succeeds
See how demand, sourcing, commitment, receipt alternatives, invoice matching, accounting entries, payment, and clearing connect.