Our company is having the same problem but it is happening in our PayPal bank feed. And there is NO automatic matching button to toggle off in the drop down Settings wheel at the top of the transactions. None of this discussion is helpful to us as we have no way to turn on or off Automatic Matching. When I go to categorize the transaction that QuickBooks is trying to match to the wrong donor, I can adjust the transaction but not in the way that our company needs it to be entered. Maybe the discussion should include what versions of QB Online have this option and which don't.