Build an AI returns manager for small e-commerce stores. Features: 1) A customer-facing returns portal with order lookup by email and order number. 2) Reason codes with policy-based routing: instant refund, exchange, store credit, or manual review. 3) Instant refunds below a configurable dollar threshold, with anything above routed to an approval queue. 4) Prepaid carrier label generation with tracking numbers written back to the order. 5) A restock workflow marking items as resellable, damaged, or donation, with an inventory sync option for the store platform. 6) AI fraud flags on serial returners, unusual size-order-then-return patterns, and accounts overlapping on address or payment method. 7) AI exchange suggestions that try to save the sale with a different size, color, or a store credit upgrade before issuing money back. 8) Analytics on return rate by product, reason, and customer cohort, with alerts when a product's return rate spikes above a set percentage. 9) A Shopify order sync so returns match the store's own data.