Business partner as customer and vendor

Hi,

I am trying to process an variable interest rate instrument wherein we need to create a single BP for both customer and vendor.

The FI customer and FI vendor has the same number( external) in our system.

I have done the required CVI settings and system does automatically create the customer as BP or vendor as BP, DEPENDING upon which master data is set up first in FI.

I do not see both vendor and customer as integrated in BP under the same Co.code, though individually it works.

. Our requirement is to create one BP for both the Vendor and Customer.

Please let me know what i am missing here.

Thanks,

Vamsi