No Same PO number shd be acceptable

Hi,
In Sales Order, the system shd not allow to enter the same PO number which was entered before and if the same PO number is entered, then there shd be error message and shd not allow further.
Do we have to use any User Exits or if there is any std setting available.
Looking for yr reply.
Naveen.

Hi Naveen,
No need of User Exits for this. Can be done in Standard SAP.
This is what you have to do.
Go to IMG -> Maintain Sales Document Type data (Tx: VOV8)
Set "A" to "Check purch.order no" field.
Now standard system will issue a Warning message when same PO is entered again. (Message No V4 - 115)
Now you need to Change that message to an error message. That can be done using message controls.
To do that. Go to Tx: OVAH
Search for;
Application Area - V4
Message number - 115
Set the Message Category to "E"
Now if you try same. System will give you a ERROR Message.
Hope this will solve your problem.
Edited by: Anupa Wijesinghe on Sep 22, 2009 1:32 PM

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