Scenario:
Request 1
Event 1
Request 2
Event 2
Event 3
Desired Outcome:
TPT 1: Request 1 - Event 1
TPT 2: Request 2 - Event 2
TPT 3: Request 2 - Event 3
So as we want to calculate the TPT btw the event and the last request we wanted to know
In a calculation rule, LAG returns an activity that precedes the current activity by a given offset.