cannot post JSON messages

You need multiple post requests to work with an Assistant…

What exactly are you doing, and how is this error being generated?

If you're getting this from a request from api.openai.com, then it's an error with OpenAI and either they have an issue they need to fix, or you're sending your request wrong and breaking their server (unlikely, but technically possible).

Here's a list of their error codes: https://help.openai.com/en/articles/6891839-api-error-codes

For 500 errors their instructions are to contact them and to check general outages here: https://status.openai.com/

I am trying to make a custom whatsapp chatbot, so i am sending JSON and this is how it shows it{    "thread_id": "{{cuf_11351767}}",    "message": "{{cuf_11351769}}"}

@Arekyosama it's happen because you need first to do some trigger on your Automation. If it is an Whatsapp Automation, you need to send at least a "hello" . And don't to forget to send your changes to LIVE prod before. 

Thank you for your reply. Yes I did send trigger messages.

It doesn't work.

You need fix the main problem first then . The issue is in your main trigger , not in this params then !