A Geofence is a virtual boundary around a location. You can define Geofences in the system and then use them to trigger events. For example, a customer entering (or nearing) a store could trigger the Geofence for that store. This could in turn trigger an event whereby the customer is presented with an appropriate action. Users can also reference Geofences in strategies and can harness this to determine the most relevant action for a customer.
Pega Customer Decision Hub Product Overview