How to change the factory calendar and in the same time keeps the history ? here is the case:
If we would to change one/two days from working days to Off-days from specific dates and in the same time to keep the old status before this specifc date.
For examples: Say Monday is working day, and would like to change it to OFF from Sept, 2008. That means Monday to remain as working day before Sept, 2009 and off-day from sept, 2009.
What to do in this case?