Lapasar
Purchasing & Procure-to-Pay

Source-to-Pay (S2P)

Also known as: S2P

Source-to-pay (S2P) is the complete procurement process spanning supplier sourcing and contracting through to purchasing, receiving and payment.

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S2P joins the strategic front end — spend analysis, sourcing, supplier selection and contracting — with the operational procure-to-pay cycle that follows. Managing the whole flow in one system means the prices and terms negotiated during sourcing carry through automatically to the catalogues and orders buyers use every day.

The value of an integrated S2P view is compliance and savings realisation: contracted pricing is enforced at the point of ordering, spend stays on-contract, and analytics feed the next sourcing cycle. It is the model large procurement suites are built around.

Frequently asked questions

What is source-to-pay?
Source-to-pay is the full procurement process — from sourcing suppliers and negotiating contracts to purchasing, receiving and paying — managed as one connected flow.
Why manage source-to-pay end to end?
So negotiated prices and terms flow straight into everyday ordering, spend stays on contract, and purchasing data feeds back into the next sourcing round.

Go deeper

Lapasar vs global procurement suites

Explore related across the knowledge graph

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Back to the procurement glossary

AI-first procurement software. Live marketplace. Human services.

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Operating model · diagram

  1. 01

    AI-first software

    AI-first procurement software for long-tail spend

  2. 02

    Live marketplace

    A live B2B marketplace

  3. 03

    Human services

    Human sourcing and support

  4. 04

    Optional add-on

    Fulfilment support for merchants