Before proceeding to the requirements planning, you must update the weekly calendar or calendars for each shift.
A calendar specifies the starting times of the shifts and the numbers of daily opening hours by shift for every day of the week.
The calendar lets you perform infinite capacity scheduling of work orders, compute the equipment capacity utilization and perform detailed scheduling of operations.
You must first enter the plant calendar (PC code) used by default in many functions.
The system identifies the working days to compute the various offsets in the scheduling procedures from the standard activity. A working day is a day for which you have defined at least one working time slot however long it lasts.
You can then define several other calendars to indicate, for instance, a work center or a machine working two shifts during a limited time or special work on Saturday.
In the infinite capacity scheduling and detailed scheduling procedures, for a given date the system will look for the week in the calendar specified for the work center or machine and, if it does not find it, it will look for the corresponding week of the standard calendar.