What does it mean?
Webhooks let you tell TourCMS where to call out to third party systems or websites when something happens (a trigger event). When it calls a webhook TourCMS will include a pre-defined payload containing structured information about the event, in some cases it may wait for and process pre-defined response.
Where do I find it?
Go to Homepage > Configuration > System & setup
Scroll down and click on Webhooks:
The pages linked below detail the various webhooks and their triggers.