Batch Determination with vendor consignment Stock

Hi all,

I have this problem with batch determination. When the same batch is presenti  in the same storage location both  in the warehouse that i consignment to vedor,      the batch determination in production order shows me the same quantity on both line.

For Example:

SLoc 1000:

Batch 333                                     23Kg

          Vendor Consignment      1000Kg

Batch determination shows me:

It shoulb be:

How can I fix this?

Thanks & Regards

Giuseppe