The payload you sent is missing OR it cannot be json decoded.
If the payload is completely missing, then add a payload. If you included a payload and it's not working, then there could be a couple different problems:
- You may have neglected to send your payload as properly formed JSON. Check that everything is set up correctly, since one misplaced or absent comma can mess up your payload.
- If you're using one of our API clients, you may have added the parameters incorrectly. Consult the examples and documentation for your API client for further details.
You can cut down on mistakes by using one of our clients. We offer clients for our API in these languages: