Batch valuation at UD

HI,

I am using MICs linked to batch characteristics in my inspection plan. When I do the UD for the inspection lot, the values entered in the inspection lot arre copied correctly into the corresponding batch characteristics.

My problem is that the batch to update allready has stock and I don't want the value from the UD to be copied as such in the batch but as a weighted averdage value.

Example:

I produce 100L of material A into batch TANK1 and I get an inspection lot for it. I complete the inspection lot and do UD, all the values of the UD are copied into TANK1.

The next day I produce another 50L of material A into batch TANK1 and I get another inspection lot for it. I complete the inspection lot and do UD, all the values of the UD are copied into TANK1. The problem is that in batch TANK1 I need to have the average values of both inspection lots.

Is there any setting to achieve this? Does anyone no a BADI or user-exit in which I could change the values to be set into the batch classification?

Thanks a lot in advance.