Hi, Amy. The inability to exit learning isn’t always a reason to try something else. If you’re getting acceptable results, feel free to keep optimizing for the purchase. You should prioritize optimizing for the action you want because that’s what Meta bases optimization for delivery on. Otherwise, you need to get creative with different optimizations. It could be for quality traffic (use 1-day click attribution setting), Add to Cart or Initiate Checkout, or something else. But there’s no guarantee that those optimizations will get you more purchases than simply optimizing for a purchase.