Duplicate Guard

Duplicate Guard is a Shopify App designed to help merchants identify and review duplicate-looking orders before fulfillment. It flags repeated email, phone, address, and SKU signals in recent orders, allowing the team to decide on the next steps. It serves as a useful tool for preventing accidental repeat checkouts, managing one-per-household campaigns, limited drops, COD or phone-first orders, and other scenarios where shipping duplicates can be costly.