---
title: "Use cases and process flows"
url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/use-cases-and-process-flows"
source_url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/use-cases-and-process-flows.md"
canonical: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/use-cases-and-process-flows"
last_modified: "2026-05-24T12:54:31+02:00"
language: "en"
---

# Use cases and process flows

[View source](/point-of-sale/classic-library-deprecation/classic-library-integrations/use-cases-and-process-flows.md)

We are [discontinuing classic libraries](/point-of-sale/classic-library-deprecation). If you are currently using a classic library, you need to migrate to [Terminal API](/point-of-sale/design-your-integration/terminal-api).\
Do not build a new integration with a classic library.

Use cases and process flows for Adyen's point-of-sale systems are provided below to aid understanding of how payments work.