Exit to Purchase Requisition before save.

Question:
I'm looking for a exit to Purchase Requisition(ME51n) before save, anybody know anything about ??
thanks
regards
Suzuki
Answer:
There are three funtion exits in ME51n. Check the enhancement MEREQ001 in transaction SMOD if you could use any of them.
Hope that helps.
Vasim
Answer:
Thanks for the information Vasim, I'll try to use it.
[]'s
Suzuki