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Copy the callback URL and add it to the corresponding field in your identity provider. This is typically done when you create a new “Client” application / Relying Party on the Identity Provider. The name of this field can vary, but it is typically also namedreply URL or redirect_uri. This is the URL your identity provider will redirect the user back to after the user has authenticated with their credentials. You can read more about this field in the OpenID Connect specification under 3.1.2.1. Authentication Request.
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