@scheeri    FIFO is the default priority of a connection queue; however, if you have more then one concurrent task on a processor, multiple FlowFiles from the source connection can be executed about concurrently.  This means that one of those concurrent execution may complete before the other leading to FlowFile no longer being in same order in follow-on connections.   If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped. Thank you, Matt ... View more