One or more redirection URIs for registering with SumUp.
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For a test account reach out to our support team through this contact form.
You have a merchant account with SumUp and have already filled in your account details.
Here are the things that you need in order to complete the steps in this guide: In this guide, you will learn how to register a client application and obtain OAuth client credentials for it. You can see more on OAuth2 authorization flows, which explain how to request an access token that is used to obtain permission to protected resources within SumUp's API. In order to integrate an external application with SumUp's ecosystem, you have to register an OAuth application and generate the client credentials which are used to make OAuth-authenticated requests on behalf of your application.