case_agent_in_control
HTTP status: 409 (Conflict)
Title: Agent in control
Cause
The agent is handling this case and would answer over your message. Take control first, or close the case.
How to fix it
Take control of the case, then send the message again.
Call the endpoint named below first, then send the request again.
Endpoint: POST /v2/cases/{id}/take-control
Every error carries requestId and the Request-Id header. Send it when you write to support.