Invalid redirect (4,700) – Redirect URL and Allow List match exactly

API and Webhooks
1

We’re building a General App (OAuth 2.0) and get this error when starting the OAuth flow:

Invalid redirect: Chatr – AI That Supports, Collects Feedback, Books Appointments & Sells Your Product (4,700)

Current setup:

  • Redirect URL for OAuth: Chatr – AI That Supports, Collects Feedback, Books Appointments & Sells Your Product

  • OAuth Allow List: same URL added (full URL including path)

  • No trailing slash, no query params

  • state is sent as a separate query parameter, not inside redirect_uri

  • Tried with “Use Strict Mode for Redirect URLs” and “Subdomain Check” both on and off

  • Tried a new OAuth app with the same redirect URL – still 4,700