We have a Sitecore Commerce 9.0.3 implementation where minions play a somewhat more significant role than they were probably initially designed for. They synchronize catalog with PIM , pricing with external price system, promotions with external marketing system, etc. One of the most important roles is pushing the queue of created orders to the fulfillment provider. Once the order volume passed the initial rate, the fulfillment provider started getting duplicate orders. This was somewhat random, and hard to catch. The duplicate orders would always be sent within less than a second from each other. The minion logs on our side would show no duplicate attempts to send anything, and the code itself made that impossible. To add to the mystery - rebooting the server would fix the issue but only until the next deployment. After much investigation and some lucky coincidence, we've found out the following: Authoring role would suddenly start running minions ; The minions in Authoring