Hi!   I wrote a simple CRUD web API service for test the webhook, but when i try to specify the address in the developer console, I get an error - "Specify URL for POST requests". My controller support post requests.   What could be the problem?   Thx.   UPD: I solved the problem. The web server must response with http code 200.   Now I have another question.  Do I need to have funds on my balance to test my subscription?       ... View more