Mapping one Vendor into two different Cash Management group.

HI Guys.

I have  two Vendor Cash Management group in Cash Management,

1. Vendor X group

2. Vendor Y group

There is a vendor named A supplying material to both X & Y.

In the vendor master we have assigned the cash management group  X.

But client want to see the report that whenever Vendor A supplying to X group, it it should reflect to X & Whenever supplying to Y , It should show Y.

The requirement is to change the vendor cash management group according to the transaction.

Any suggestion please......