How can we prevent Schedule Lines changing after they've been delivered?
There's a situation where Sales order LI's have multiple schedule lines. Part of the Schedule lines have been delivered and have AGID's. In some cases when checking ATP on the LI for the remaining "open" quantity, the delivered qtys change from their original Sched LI's and get merged into Sched LI 0001. The dates on the order are then changed (Delivery Date, Mat Avail Date, Goods Issue) even though they have already shipped and should not change.
SO# 12345678, LI 10
Order Qty 100,000
Confirmed Schedule Lines with separate Delivery Notes
0001 11,600 Shipped 8/6/15
0002 30,000 Shipped 8/11/15
0003 15,000 Shipped 8/13/15
0004 37,500 No Delivery Note/Not Shipped
0005 5,900 No Delivery Note/Not Shipped
When check ATP for the remaining 43,400u, the Schedule Lines get changed
0001 56,600 Equals the qty previously shipped. Dates are changed from the original settings
0002 43,400 No Delivery Note/Not Shipped
This impacts our metrics and trace-ability of support to our customers
Has anyone seen this happen? If so, any recommendations.