Source-to-contract covers the chain from requirement to signed contract: analysis, category strategy, supplier identification, tendering, evaluation, negotiation, award, execution.
Where it sits. S2C is the strategic side; procure-to-pay is operational. Together they form source-to-pay.
Why the split matters. The value-creating decisions happen upstream of any ERP or P2P system.
Requirements for services. Narrative scope descriptions, day-rate structures, multi-stage technical evaluation.