Hi Ambrish, hello Mark,
thanks to your replies I understood now the difference between ForEach and ParForEach. I do not need the ParForEach to get what I want. I go with the ForEach which is working. Here is my BPM:
The yellow marked block is the ForEach. I stopped searching why it is not working in ParForEach mode althoug it should work as well.
Thanks for your help
/Michael