Convert IDOC XML structure to flat file - and now?

Question

Hi,
we are working with input message ORDERS05 and want to convert it to flat file.
So we used the implementation description from "how to convert an IDOC-XML structure to a flat file....".
Looks like this is a standard procedure described here fitting for all IDOCs.
We followed the guide, making XI ready for Abap-Mapping, implemented the Abap class like described, added an interface mapping with source ORDERS05 to a mess.type dummy destination, added with type Abap-class the class implemented from the guide and completed the Int.Dir. implementation.
For comparism purpose we have two systems as receiver, one with a standard flat file with regular graph.mapping in XI, one with the Abap mapping.
Result:
Error description in SXMB_MONI:
Didn´t expect something like that! The IDOC was delivered successfully to the other simple flat file receiver.
Any idea what we made wrong (we are on SP17) or if there is a standard mistake you can do when following the guide?
Best regards
Dirk

Answer 1

Hi,
I've got the same problem. He the solution in my case:
The problem is:
My IDOC has no element <STDMES>, but the method IF_MAPPING~EXECUTE from the 'HOW-TO Guide' does not check this situation:
el_element = idocument->find_from_name('STDMES').
ls_edidc-stdmes = el_element->get_value().
thows the exception.
Solution:
make shure that the field STDMESis set or change the method to:
el_element = idocument->find_from_name('STDMES').
if not el_element is initial.
    ls_edidc-stdmes = el_element->get_value().
endif.
Best regards
Dieter