Order Editing & Upsell lets shoppers change items after purchase—add, remove, swap variants, and update quantities—without a new checkout. Post-purchase upsell offers can appear during editing. Edits apply to the existing order in Shopify, so customers keep one order number. The app adds editing to the thank-you page and order status page, where buyers already track their order.

• Self-serve changes — Add, remove, replace items; update qty when rules allow.
• Address fixes — Correct enabled fields; fewer bad shipments and support tickets.
• Post-purchase upsells — Offers during editing; you decide when they appear.
• Same-order updates — Edits stay on the original order for one clear reference.
• Post-checkout — Thank-you & order status: self-serve order edits after payment.