成茂優季

I'm experiencing the exact same issue. Even though the official documentation states that the user's email address does not need to be verified, a 403 error is returned if the email address is not verified. Does anyone know of a solution?
 

The article mentions that it's possible to include up to 2000 steps in a response, but when I input around 1600 steps, the bot encounters a 503 error and can no longer be published. Is there any workaround for this? We're in trouble because we can't provide the service to our customers.