@SAMSAL  Hi, sorry that I was not clear enough in my question, was doing my best 😞  @MattWho  This works, thank you very much. I have set a maximum back-off time for 1 minute as this process is quite time-sensitive and set the queue before RouteonAttribute as well as looped relationship to prioritize the oldest fileflow. Thank you both for help! ... View more

@SAMSAL  Jeez... I should not have prepared that flow at the end of 12 hour work... Of course, it works now, sorry for troubles and thanks for quick support ... View more