[09366768] OpenAI Ads API "503: Authentication backend failure"
OpenAI Developer Community
June 1, 2026
Looks like something changed on your backend, and now I’m getting:
{
“error”: {
“message”: “Unauthorized”,
“type”: “invalid_request_error”,
“param”: null,
“code”: null
}
}
x-request-id: dab411fb-f62b-4203-82f5-8056b0aeb498
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