How Negative Float Is Created in Primavera P6 (CPM Explained)

The video that is in the link below, breaks down exactly how negative float gets created in a CPM network, walking through why an activity's late dates can fall before its early dates once a constraint or an imposed finish date is in play, and what that actually means for the schedule underneath it.

Getting this right matters because negative float is usually the first signal that a project can no longer finish on time under its current logic and durations.

Knowing how to read and explain negative float helps planners flag real schedule risk early, instead of waiting for it to show up as a missed milestone later.