ME59N Single PO

Hi,

We are using ME59N for PO creation.

currently the system create two PO for single PR. based on the condidtion EBAN-KONNR

For Item 20 EABN-KONNR values empty

For Item 10 and 30  EABN-KONNR have some value.

based on the above condition system created two PO.

One PO for Item 20

Othert PO for Item 10 and 30.

My requirement I want create single PR for above condition

How to achive this functionality ?

Any BAdi or Exit is available for this requirement ?

I found list BAdi for Me59N txn. But I want to know which BAdi fullfill this requirement

Thanks,

Vimal Alexander