PO auto approval

Hi,

I know the question I'm about to ask here is not a best practise. But, this is a requirement now.

When the PO creator= Approver, the PO need to be automatically approved.

Is this achievable through BADI/BAPI or any exits?

We don't have workflow at the moment.. Its the conventional email notification process we follow.

Any help/suggestions are highly appreciated.

Regards,

SS