Using preemption in a policy change

A preemption can occur if two policy transactions are open on a policy at the same time. The first policy transaction that binds preempts the second one. PolicyCenter handles preemptions by merging the changes made in the preempting policy transaction with the changes made in the preempted policy transaction. The user interface provides you with a way to merge these changes into the preempted policy transaction. Preemptions are not unique to policy changes; they also occur in audits, cancellations, reinstatements, and renewals.