Cant share the exact JSON but lemme share format of what I am sharing. Also if you're concerned that I might be sending in wrong format or something, endpoint works when I am sending light data but doesnt when data gets a bit heavy in size { "assistantId": "b378437a-df4f-48a2-a1af-657561fed9cb", "customer": { "number": "+***" }, "assistantOverrides": { "firstMessageMode": "assistant-waits-for-user", "variableValues": { "currentTime": "2024-08-09T21:51:01.316Z", }, "firstMessage": "Hey there, this is Jane; from Dr. Khan’s office at DP Cardiology. I just wanted to do a quick health check in with you if you had a minute." }, "phoneNumberId": "3a45e90f-4d06-49b7-9e83-d1ff20f368bb" }