---
title: "Key steps"
url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library"
source_url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library.md"
canonical: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library"
last_modified: "2026-05-24T12:54:31+02:00"
language: "en"
---

# Key steps

[View source](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library.md)

The key steps to integrate with the library are:

* [Initialize the library](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/initialize-the-library-c-library)
* [Initialize the library using a network proxy](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/initialize-the-library-using-a-network-proxy-c-library)
* [Register the application with the Adyen payments platform](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/register-the-application-with-adyen-c-library)
* [Register the PED with the Adyen payments platform](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/register-the-ped-with-the-adyen-payments-platform-c-library)
* [Process a basic transaction](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/process-a-basic-transaction-c-library)
* [Cancel or refund a transaction](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/cancel-or-refund-a-transaction-c-library)
* [Exit the Library](/point-of-sale/classic-library-deprecation/classic-library-integrations/c-library-integration/key-steps-c-library/exit-the-library-c-library)