Question about displaying handler errors in the webdynpro

Question

Hello all, Please forgive any EM terminology mixups as I am new to this unique module!
     Here is my scenario, I am in EM WebDynpro and updating the actual dates on a purchase req. The event handler accepts the date I entered and in the background makes a synchronous rfc call to ECC to update the related project with the new date. This rfc call fails because I have the project open and it is locked. This call is synchronous so I get the error right away and I set the return code to 4 and populate an error message that I want passed back to the user in WebDynpro. For some reason the EM system is ignoring this error and returning to the user a successful 'sent' message.
EM WebDynpro --> Purchase Req --> PO Approved Actual Date entered --> synchronous RFC to ECC to update Project --> project locked error returned by ECC --> error message populated in EM --> EM WebDynpro returns as if it was successful
I have put in breakpoints to ensure I was populating error messages back to EM and I see the details flowing back that are correct, but no details are returned to the actual user. If I go to the Event Handler Overview in the GUI I can find my error message recorded there. Problem is our users will be working from the Web primarily and would not see this message in a normal course of work.
Is there a config piece that I should be setting to return this error to the users in WebDynpro? This seems like a trivial/standard piece of functionality so I am confused as to why it is not showing up in the dynpro.
Thank you for any help or ideas and points awarded of course!
John

Answer 1

Hello Berthold,
   I believe we understand what you are saying we should do and we have mimicked the activity you described. Now we are running into a short dump when the system tries to process the RETRIEVE MSG method. The code is looking for the class /AIN/CLPUB_ID_CONVERT for some reason. This class does not exist in this release. There is a /SAPTRX/ class that matches.
So in /SAPTRX/CL_PUB_ID_CONVERT method CALL_AII_FOR_SINGLE_ID at line 45 there is this statement:      CALL METHOD (co_ain_class_name)=>(co_ain_method_id_mapping). Since this is a dynamic class/method call we think we must have something still incorrect in the IMG so we are going through troubleshooting and looking at OSS Notes. No luck so far.
Any additional input or ideas as to possible missed steps would be greatly appreciated.
John
PS Release 7 (SAPK-70004INSCEMSRV pack level)
Edited by: John D Norman on May 6, 2010 2:00 AM