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To compute the total lead time for discrete items use the following equation:
Compute the total lead time for repetitive items using the following equation:
Offset the date by total lead time using the following equation:
Attention: Oracle Manufacturing offsets the requirement date by the total lead time using the workday calendar, accounting for any non-workdays. Before subtracting total lead time, Oracle Manufacturing determines the workday for the requirement date. After offsetting by total lead time, the calendar date is derived from the starting workday.
Suppose your MRP plan produced a requirement for 100 discretely manufactured assemblies on March 12 and the following information exists for that assembly:
Suppose your organization's workday calendar has a workday pattern with five days on and two days off. Workdays 1 - 5 are March 1 - 5. Saturday and Sunday, March 6 and 7, are off. Workdays 6 - 10 are March 8 - 12.
Master Scheduling/MRP then calculates the planned order release date as follows:
Convert planned order requirement date to a workday (using your organization's workday calendar).
Finally, determine the start date.
Material Requirements Planning
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