We have been communicating with Vertex O Series on demand for months with no problems requesting a refreshed token. On or around February 10, 2026 we began getting a "HTTP/1.1 400" error when requesting new token. It does not occur every time.
I had Vertex support looking into it for over 1 week ...
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- Wed Feb 25, 2026 8:43 pm
- Forum: HTTPAPI
- Topic: HTTP/1.1 400 error when requesting new token
- Replies: 1
- Views: 13679