If a scheduling solution exists for a set of activities, but the standard scheduling function is unable to find it (for example, due to a complex set of sequencing constraints), then use backtracking scheduling to find a solution.
Backtrack scheduling is able to reverse its previous actions. During the process,
As backtrack scheduling is a more complex process than standard scheduling, it requires more processing time. Consequently, you should use it on small sets of activities.
To use backtrack scheduling, see Automatically schedule activities.