I am developing an application that calls your API using OAuth 2.0 Implicit Flow. From my program, it generates the following URL, then when clicked from the UI it routes to constant contact authentication server. https://authz.constantcontact.com/oauth2/default/v1/authorize?client_id=XXXX-XXX-XXX-XX-XXXXX&redirect_uri=https%3A%2F%2Ffreetext.ngrok.app%2F&response_type=token&state=bCTF0lLuwFvOMFIyZ0TeWbIphwoOQn69H8y&nonce=ZhIKuVaTkDH3KREClbLD0peBMaweNf&scope=contact_data But error shows, 400 Bad Request... it says: Your request resulted in an error. The 'redirect_uri' parameter must be a Login redirect URI in the client app settings: https://prod-ctct-admin.okta.com/admin/app/oidc_client/instance/0oa1wm5qv6nKZZLmB0h8#tab-general I am new to this, so I am not sure if my entries are correct.
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