title: Generic Error webhook for integromat scenario
body: <p>So I know at each step of a scenario I can setup an error handler to call a webhook, but does anyone know if it's possible to just fire a webhook if the scenario fails anywhere?</p>
  <p>Reason: I want to send failures to OpsGenie as the current email notification thing is daft and prone to getting missed.</p>
  <p>Any help would be greatly appreciated.</p>