1 create item finish good:A001,purchase item:B001,purchase item:C001
and the item B001 Processing lead time=3 days,the item C001 Processing lead
time=7 days
2 create BOM A001 include the components of B001 AND C001
3 create Routing A001 and the usage=1
4 run "Calculate Manufacturing Lead Time" and "Rollup Cumulative Lead times"
5 MDS demand date=10-DEC-2004
6 run MRP, B001 sugge date=06-DEC-2004 and C001 sugge date=06-DEC-2004
i can't understand the sugge date=06-DEC-2004
為什么建議采購日為06-DEC-2004