Bulk Discounts Price Editor

I should have read the reviews first. So, I just installed the Pro Plan and I'm finding that every time a carefully scroll my product inventory and select the products to put on sale that a good portion of those products ARE NOT UPDATED. So, right now I have 3 different sales running as I try to get the Bulk Discounts app to remember the products I've selected. I've been screwing around with this now for over an hour, archiving sales, or reverting or creating more than one sale because the app forgets my selections. DONE. I'm uninstalling this now, BUT the most frustrating part of this is SHOPIFY should have all of this built in! WTF Shopify, get your shit together Shopify, all these sales functions are BASIC functions that every business owner uses. WHY am I playing arround experimenting with apps that don't work when Shopify should have had this built in?