How I can add new triggring app service?

When creating trigger, there are apps services available to select.
How I can integrate my own app service.

Does your application supports webhooks If yes then select webhook as trigger app and do the setup of webhook in your app.

Or you can use scheduler as trigger as per your required time interval and use API module of pabbly to fetch data from your app.

Or you can add request for your app's integration here - https://pabbly.hellonext.co/

Thanks mate!