Purchase-to-pay, often abbreviated to P2P and also called ''req to check/cheque'', refers to the

business process A business process, business method or business function is a collection of related, structured activities or tasks by people or equipment in which a specific sequence produces a service or product (serves a particular business goal) for a parti ...

es that cover activities of requesting (requisitioning), purchasing, receiving, paying for and accounting for goods and services. Most organisations have a formal process and specialist staff to control this activity so that spending is not wasteful or fraudulent.

References

Transaction processing {{Business-stub