Hello
I suggest you to read carefully the following note:
150007 - Consulting: Scheduling of production orders
This note provides the information below:
* Have you defined not only units of measurement less than "Day" for the standard values?
The unit of measurement for time segments Setup, Processing, and Tearing down is equal for all three time segments. It is defined as the largest of all units of measurement of the standard values.
The durations calculated via the formulas are converted in accordance with the global units of measurement from the Customizing, for example, a day has 24 hours. This can be explained by the fact that various quotations could possibly be taken into account for the determination of the durations. The various quotations are based on different operating times. Hence, you generally cannot decide how long a day at the work center lasts since the quotation of the work center can be different every day.
Thereby, the schedules might not be determined as expected (see also sections 2.2.1 and 2.2.2).
If you encounter problems in this respect, check whether the introduction of a new time unit, as, for example, 1 work day = 8 hours, could serve as a solution.
My suggestion for you is to follow the advice provided on this note and use an unit different than day.
BR
Caetano