Tick the checkbox on each card (or Select All next to the Existing Items / Non-existing Items headings). A sticky bar appears at the bottom showing "N selected" with Confirm Changes and Update Macros. Clicking it updates every selected existing item (supplier mapping, cost, base weight/unit) and creates every selected new item, and calculates macros with AI for new items and for existing items that had no macros. Stock is only touched if a kitchen location is currently selected in the admin header — in that case existing items get stock = current Ingredient Stock + Qty Purchased and new items get stock = Qty Purchased; with no location selected, everything else still saves but stock is left unchanged. Sprwt first checks your AI credits for the macro calls and shows the no-credits pop-up if the balance is insufficient. When done you see "Updated: X, Created: Y" (plus an error count if any) and processed cards are locked; the receipt data is then cleared.