Is there any userexit available during conversion of PR to PO.
Thank you in anticipation
it depends. If you are thinking of automatic conversion via ME57, ... ME59 check in SMOD
for enhancements LMEQR001
ME590001. These are called during searching for source of supply and in ME59.
But of course as written in the other postings
the user exits within SAPMM06E are still available
To get a nice list call transaction SMOD, F4, enter package ME and see the list of user exits in purchasing.