To integrate with Integromat Webhook App, please check Integromat webhooks guide first:
After the webhook is set in your Integromat scenario, open your app.scena.ai dialog and add HTTP request module into your flow:
Use the POST request method and JSON as Content Body. Define all variables inside the JSON request structure.
Optionally, you can also capture Integromat Webhook response to app.scena.ai variable.