Thanks Amit and Muniyappan,
this might sound stupid but: How do I read in the entire line? Do I need content conversion then? What if there may be multiple lines in one input (separated by new line 'nl')? Would this matter?
--> I will definitely give this option (read whole line, do splitting in mapping) a try. But being a curious person: If anybody has information on whether this problem may be solvable using content conversion I would be happy to know.
Thanks all
Cheers
Jens