Multi-Category Bundle ("Complete the Look") Discount

**Feature Request: Multi-Category Bundle ("Complete the Look") Discount** **Merchant Use Case** A merchant sells formal wear and wants to run a "Full Suit Pack" promotion: automatically apply a fixed discount when a customer's cart contains at least one item from each of four predefined product collections (pants, jacket, shirt, tie), bringing the combined pack to a fixed target price. --- **Core Requirements** 1. **Category-based eligibility, not quantity-based.** Each "slot" maps to a merchant-defined collection. The promotion activates only when all N slots are filled — one item per slot. Four ties do not fill four slots; they fill one. 2. **Multi-pack scaling.** If the customer has 2 items in every slot (2 pants + 2 jackets + 2 shirts + 2 ties), the discount applies twice. The number of complete packs = `min(qty in slot 1, qty in slot 2, ... qty in slot N)`. 3. **Non-interfering extra items.** Products outside the defined collections sit in the cart untouched — no discount applied to them, no eligibility impact. 4. **Fixed-price outcome.** The discount is not a percentage — it's a dynamic fixed amount calculated as `(pack target price) − (sum of actual prices of the selected items in the pack)`, applied per complete pack. --- **Why this doesn't map to any current campaign type** | Requirement | Closest existing type | Gap | |---|---|---| | Cross-collection bundle logic | BXGY | BXGY handles "buy product A, get product B" — not "one from each of N collections" | | Multi-pack scaling | Quantity Discount | QD tiers on total quantity, not on N-of-M collection completion | | Fixed pack price (not % off) | Bulk Price Editor | BPE modifies individual product prices, not a cart-level bundle price | This is a net-new campaign type. The Shopify Function layer (`bxgy-discount` or a new `bundle-discount` function) would need to implement the collection-slot matching and per-pack discount calculation logic. --- **Suggested Feature Name:** Bundle / Complete the Look Campaign **Severity/Priority Signal:** This is a P2 feature gap — merchant has a legitimate, commercially common use case (bundle promotions are standard in fashion/apparel) that no current campaign type can approximate without manual workarounds. **Recommended action:** Log to FeatureBase to gauge vote traction before scoping. Worth checking if any existing "bundle" or "kit" requests are already open that this consolidates.