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"path": "/t/oauth-mcp-server-works-in-chatgpt-developer-mode-create-app-but-fails-in-app-review-form-what-does-unsupported-oauth-config-type-really-mean/1380378#post_2",
"publishedAt": "2026-05-06T12:05:57.000Z",
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"textContent": "I’m having similar issue. The backend log show the error happen after it hit “.well-known/openid-configuration”. Could be some validation errors but the message is not useful at this time.\nSeems liked this is a new issues. Submitted another app a few days ago with the same oauth config and it was fine.",
"title": "OAuth MCP server works in ChatGPT Developer Mode (\"Create App\") but fails in App Review form — what does \"unsupported OAuth config type\" really mean?"
}