Core Commerce includes three scenario elements that listen for the following events:
a marker being added to an order (
Marker Added)a marker being removed from an order (
Marker Removed)one marker being replaced on an order with another marker (
Marker Replaced)
You can create a scenario that listens for a marker event.
For more information on the events described here, see the Using Event Elements in Scenarios section in the Creating Scenarios chapter of the Personalization Guide for Business Users.

