Shopify POS v11.15 adds a persistent cart button to mobile that displays recent items, the number of products, and the total. The full cart opens with a gesture from Home, Products, Orders, or Search.
Source: official announcement.
What to check first
Add a product, a discount, and a customer in a demo session. Verify the total, line items, and charges after each action before checking out. The button replaces the old cart tab in mobile navigation, which may change your team's habits.
A real-world scenario
On the sales floor, a staff member adds two variants then answers a product question. The total remains visible while switching screens. However, she must open the full cart before payment to check each variant and the discount.
How to measure the result
Better visibility does not fix an incorrect price or stock level. Focus on measuring checkout errors and order corrections, not the number of times the button is opened.


