ChatGPT connector stuck on deleted OAuth client_id — Apps team, please help clear account cache

OpenAI Developer Community May 28, 2026

Source

ChatGPT app connector stuck on deleted OAuth client_id — invalid_request:

Unknown client on every Connect attempt.

I’m both the developer and an end user of the Phenomen Stocks IL app

(published on the ChatGPT App Store, approved 22 May 2026). My ChatGPT account

is permanently stuck unable to connect to this app because OpenAI’s backend

has cached an OAuth client_id that no longer exists in our identity provider

(Auth0).

Symptom: every Connect attempt fails with "invalid_request: Unknown client:

ieg6UFs8HmGe18PBziYTxO8yMl8r0ASw". The error originates from our Auth0 tenant

when ChatGPT’s OAuth flow sends that client_id to our authorization endpoint.

Root cause on our side (resolved): during a routine Auth0 DCR client cleanup

on 2026-05-26, the old client_id ieg6UFs8HmGe18PBziYTxO8yMl8r0ASw was deleted.

New users connecting since then register fresh DCR clients without issue.

The remaining problem is OpenAI-side: my ChatGPT account’s connector cache

still holds the deleted client_id and reuses it on every Connect attempt —

even after I (a) disconnected in Settings → Apps, (b) fully removed the app

(it no longer appears in Settings → Apps), (c) re-added from the app-store

URL, (d) opened in an incognito window, (e) switched browsers. In each case,

ChatGPT still sends the deleted client_id, confirming the cache is

account-side, not browser-side.

What I need: please clear the connector OAuth registration for Phenomen Stocks

IL on my ChatGPT account so that the next Connect attempt triggers a fresh

Dynamic Client Registration against our Auth0 tenant. After that’s cleared,

ChatGPT should register a new client_id and the connection will work normally.

Evidence (Auth0 tenant lobix-ai):

19:03:16 UTC, 19:36:18 UTC

client", oauthError=invalid_request, hostname=auth.lobix.ai