Error in confirmed qty after V_V2 update

Question

Hi Experts
This is a very strange issue im facing. The scenario is as explained:
The moment, there is an inward delivery in the warehouse, the user runs the rescheduling program V_V2 to update the confirmed quantity of backorders.
The problem here is, the confirmed quantity of the main item in material substitution is wrongly updated as completely confirmed even thoug the sum of the confirmed quantities in the sub items is not equal to the order quantity.
Example:
Item 10 of sales order created for 50 NOS on 21.04.2011.
Due to material substitution, Item 11 and item 12 are generated for 20 NOS and 30 NOS respectively
21.04.2011
Item          Ord Qty        Rounded Qty          Confirmed Qty     Item Category
  Item 10      50                    50                         20                              TAX
  Item 11      20                    20                         20                              TAPS
  Item 12      30                    30                         00                              TAPS
Looks fine till here.
25.04.2011 - V_V2 run by the user.
Item          Ord Qty        Rounded Qty          Confirmed Qty     Item Category
  Item 10      50                    50                         50                              TAX
  Item 11      20                    20                         20                              TAPS
  Item 12      30                    30                         00                              TAPS
Here as you can see, the confirmed Qty of the main item is changed to 50 even though stock not available.
Due to this, orders which have these issues are appearing in the delivery due list in VL10A, though they dont have stock available to deliver the goods.
I have checked in MD04, CO09 and checked every other settings related to availability check but in vain.
I even tried CO06 to change the confirmed quantities, but only the sub items are appearing in the list there.
Please advise what needs to be done.
Thanks & Regards
Madhu
Edited by: Madhu Naidu on May 2, 2011 12:51 PM
Edited by: Madhu Naidu on May 2, 2011 2:17 PM

Answer 1

Hi Marian
Thanks for your response.
I checked OVZ9 and there only reservations, sales reqmts and deliveries are ticked for inward/outward movments.
Yes you are right that in rule 02 / RP, it considers all movements. In that case why only the confirmed qty of the main item is updated incorrectly and the sub items are not. And how to avoid this as this is including order items (orders) without physical stock also in the delivery due list in VL10A.
Thanks & Regards
Madhu