BAdi / Exit to replace MIRO Invoicing Party with PO Invoicing Party

Hi,

Following is the current scenario :

PO is created on branch vendor (with a HO vendor mentioned in master). While doing MIRO, the system automatically

replaces the branch vendor with the Head office vendor (as mentioned in master). The region taken for tax purpose

is the region of the HO vendor.

Now as per our business requirement, we want to replace MIRO Inv. Party (RBKP-LIFNR) with

PO Inv. Party (EKKO-LIFRE) and want to do tax calculation based on branch Vendor.

We have already tried out all BAdis mentioned in SAP Note 1156325 - BAdIs in the Logistics Invoice Verification environment, but not able to map this replacement during t.code MIRO.

Pls suggest which User Exit / Badi need to be used?

Thanks & Regards,

Taral Patel