Amber,
Yes we are using accumulation setting #3. On your suggestion, I set one order type to use #2 and one to use #3. Then I booked an order for each type with quantity 5. Based on the stock requirements situation, they both scheduled to the replenishment lead time as expected. I then went in to them and ran the manual ATP via VA02. Both rescheduled in ahead of the dependent production requirements giving the same dates for each order type. (I didn't save the orders between tests so as not to complicate the data.) The business is insisting that the manual ATP should return the same dates as the initial ATP upon order entry. It is clearly not doing that. Is what I am seeing standard behavior for the ATP?
Thanks,
Bob