How many recommendations you have selected and how many VMSS instances you have in your subscription ? If you have a large environment that changes constantly and you select a long list of recommendations, this may occur. You may have to narrow your search, instead of selecting a bunch of recommendations, select just some and narrow the recommendation state. The recommendation state filed below is set to “all states”, which means that, once a recommendation changes the state from healthy to unhealthy (and vice versa), it will trigger the logic app. That’s on its own could be a lot of events. Is this really what you want ? All states?