Hi,
If I have a part that has 15 days ,manufacturing leadtime set on the Inventory part, when MRP runs and creates SOR and then I convert to Shop Order why is the system not using the 15 days to calculate start date to finish date, the dates below only calculates 10 days. (our working week is 4 days Monday to Thursday) 15th - 18th = 4days, 22nd -25th = 4 days , 1st -2nd = 2days
+23
The start date of the shop order requisition is calculated from the lead time, but the shop order start and finish date is a result of the scheduling of its operations. There are several reasons why these could differs, for instance is the work center resource efficiency considered in the shop order scheduling, but does not affect the lead time. Typically tge shop order scheduling is much more "correct" than the more rough lead time.
Hi,
Some additional comments to Björns comments...
Actually the lead time of the shop order requisitions are calculated like this:
Fixed Leadtime per Day + Variable Leadtime per Day * Mrp Planned Qty. And that can of course differ quite a lot from the manufacturing lead time in Inventory Part, which is based on Std Lot Size
It has been like that for many many years.
The manufacturing lead time of the part defined in Inventory Part is not so much used in manufacturing. On top of my head it is used by:
Cheers,
Mats
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