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Client ID – This is the “Application (client) ID” of the App Registration (Active Directory)
Secret Value – This is the Value of the Secret (not the Secret ID) you create in the App Registration. It is provided once when created, after that it cannot be retrieved, and a new secret must be created.
Discovery Endpoint – This is the address of an auto-configuration service that will set up OIDC. It is known as the OpenID Connect metadata document. In Azure Active Directory this is located in the Overview Panel and can be reached by clicking the Endpoints button.
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