Hello Pascal,
it seems to be a problem I had in class LCL_QUEUE method MIN_MAX( ) here (untyped EXPORTING parameter). I quote Bruno Esperança:
Hi Jacques,
Case was solved by Marco Jäger.
Apparently if you don't explicitly type a parameter, SAP automatically attributes a char type to it. So you need to check it the parameter is requested, like this:
Cheers!
IF es_line IS REQUESTED.
es_line = <ls_line>.
ENDIF.
Hope this helps,
JNN