Set the group's picture
PUT/api/sessions/:sessionId/groups/:groupId/picture
Set the group's picture
Request
Responses
- 200
- 400
- 403
- 404
- 409
- 503
Group picture updated
The id does not name a group, or the session is not active, or neither url nor base64 was supplied
The engine refused the change — admin rights required
No such group — the id is unknown.
The session is not connected — an engine exists for it but is not ready: disconnected, reconnecting, or still initializing, so the request never reached WhatsApp. Wait for ready and retry. A session that was never started answers 400 instead, and the session lifecycle routes answer 409 for a conflicting state rather than this. One window answers this while the session still reads ready: WhatsApp Web periodically reloads its own page and the engine re-injects into it — for those few seconds the answer is a 409 naming the reload; retry shortly.
WhatsApp did not answer within the request budget. The change may or may not have been applied — the gateway stopped waiting for a confirmation that never came.