Creates a policy.
The createPolicy() function returns a Promise that resolves to the newly-created policy.
You can create up to 3 policies per event. If you try to create more than 3, you'll get the "Maximum number of policies for the event has been reached" error.
You can only call this method when authenticated as a Wix app or Wix user identity.
Policy info.
This method doesn’t return any custom errors, but may return standard errors. Learn more about standard Wix errors.