Error AAPO169 when performing MIGO on a PO with Acc.Ass Category A

Hi,

When perfoming MIGO on a PO with:

- Account assignement category                      A (Asset)

- Item Category in Purchasing Document          L (Subcontracting)

- Single account assignement

- Derive from Account assignement category   

I receive this message: "Correct quantity, quantity on asset XXXX-0 is only  1.

The ER is made as follows, and the error is on line 3.

If I change the Q.ty in UMA in 1 the check doesn't fail anymore, but unfortunetely I need to charge on the asset all 4 pieces.

Do you have any idea on how to solve this problem?

thanks,

s.