Hi.....
My Functional Consultant usign ML81n transaction for creating Service entry sheet for Purchasing orders. In that screen Acceptance document Fields i have two fields XBLNR AND OTHER. While creating service entry for a praticular line item i gave xblnr and all others fields it is accepted and created service enty no. Again I try to create one more service entry for a diffreent line item again i gave same XBLNR Which i have given before.. Entry sheet created sucessfully.... Here the probelm is
In xblnr field if i enty same xblnr no which i gave before it should throw
an error..for this i need an user exit . I found userexit for that . But I dnot know which user exit i have to use.. please help me..........
Thanks,.