Merge Third party Payment from different Vendor

Hi Experts,

We have below scenerio, We are using TPP configuration for many vendor and in the relation all those vendor will have a single Supplier relationship.

As a example:

Vendor 1--> relationship to VENDOR-3

Vendor-2--> relationship to VENDOR-3

Now in one Invoice batch I have three invoice as below:

Invoice Batch#1:

Invoice Num# 001 Amount -> 10, Vendor 1

Invoice Num#002, Amount->20 , Vendor 1

Invoice Num#003, Amoun t->70, Vendor-2

Due to the TPP configuration all the above invoice have same payy as-> VENDOR-3

I am creating a single payment request and given Invoice Batch#1 for processing, system have created two payment document: