The shooting schedule is not completed on the first day of shooting. Although it happens that a schedule is worked out without any deviations, that's not the rule. On the one hand, it is possible to deviate deliberately from the anticipated procedure because new empirical values have been gained or simply because better solutions have been found.
On the other hand, the script work in the filming phase can continue, and also the preparation level can change again, so that the shooting planning has to react. Often enough, however, there is a need to deal with unforeseen influences and change the shooting schedule. Typical triggers are the weather, illnesses and breakdowns, but also the shooting process itself. For example, it may turn out that repetitions or additions are needed for dramaturgical or staging reasons, or that the shoot was simply too slow, and it was not possible to deal with the workload.
As in the preparation, the shooting schedule is not a fixed plan in the shooting phase, but rather a process. The assistant director analyzes the shooting progress and the resulting changes daily. Should fundamental changes become necessary with longer-term effects, this will be recorded in a new external shooting plan and distributed so that the departments can adapt their work. Smaller, short-term changes are communicated via the call sheet. Only at the end of the shoot is the shooting schedule complete.