Tacey: Order Editing & Merge

Self-service order editing on the Shopify thank you page and order status page.Address validation catches a wrong address when the order is placed and holds itbefore it ships. Customers can edit an order after purchase: fix a wrong address,change quantity, swap a variant, add items, download a PDF invoice, or cancel.Merge orders: two paid orders from one customer become one shipment. No refund,no second charge.Send Pre-shipment reminders and post purchase upsells on the same page.