Return to supplier process in case of replaced Goods

Dear SAP Experts,

In lawsuit of supplier instrumentality with PO Return, if the supplier suggest to regenerate the items returned with caller ones which person differents caractéristiques (Batch, Shelf Life..etc) How bash I integrate those matrials 

1- Create PO QTY = 300, Good receipt

2- PO Return  with Qty 100, Good issue  MVT TYPE 161

3- if the supplier raplace the 100 quantity with caller ones (New bathes & Caracteristics), however to participate those materials successful the strategy ?