i have to design an interface for exception handling .there is a client system ( mainframe) linked to
sap system through webspher (ibm) .whenever ERN from the client system comes to sap system .
there will be 2 types .
1. the ERN is valid one.
2. the ERN is invalid one .
for the invalid ERN we have to inform the client system about the exception. this is through IDOC only ..
can any one sugesst the good techincal design.