@Bryan-Square, wouldn’t you ask @Cinji18 if there is time enough between those 2 notifications for his/her system to save the 1st one and then compare the 2nd one? and ignore one or the other? if the answer is that those 2 notifications are sent simultaneously, well, it’s the same issue affecting everybody else? no system will be able to do what you suggest without having to implement some kind of webhook queueing system, load balancing or throttling system, that I’m pretty sure no small business have resources to acquire/setup, to be able to log and analyze multiple webhook notifications that arrive at the same time for basically the same events? this issue seems to be affecting many Square developers but nobody seems to be noticing? and trying to find solutions?