Hi Haidi,
Did you try to implement the User Exit COPCP002 ? There is a good solution proposed below, but we can't impment it beacause of the system doesn't check the UE before checking the price in the QBEW table.
Please share the solution if you find it.
Regards
Imad
To force the valuation at the material standard price (from MBEW) for the first goods receipt you should program correspondingly the user exit COPCP002. When the first goods receipt is posted, the valuation will always use the price from QBEW, not from MBEW. One can however update the standard price in QBEW using transaction MR21.
Changing QBEW-LBWST will not change the standard price.