Bundle-Gated Product Access App
The Opportunity
An app that prevents selected products from being purchased unless a required core product is already in the cart. Merchants can define dependency rules like “eggs only if veg box is present” without coding custom cart logic.
"Merchants need to sell add-on or dependent products only when customers have purchased a qualifying primary item, but Shopify does not natively support product-level purchase prerequisites."
Market Validation
Detailed Analysis
Proposed Solution
Provide rule-based cart validation and add-to-cart restrictions that check for required parent products or collections before allowing dependent items to be purchased.
Target Audience
Shopify merchants selling subscriptions, boxes, meal kits, accessories, refills, regulated add-ons, or complementary products
Competitive Landscape
Bundler - Product Bundles, Frequently Bought Together, Bundles by PickyStory, Upsell apps with cart rules, custom theme scripts
Implementation Notes
Use cart validation, product/collection dependency rules, and theme app blocks or app embed to block add-to-cart actions for gated items; support both cart page and AJAX carts, display clear error messaging, and optionally auto-hide dependent products until a qualifying item is detected in cart or customer session.
Evidence from Merchants
Real quotes from Shopify community forums
"I only want customers to be able to add to their orders, if they have ordered a core product."
"I don’t want these products to be orderable on their own."
Key Pain Points
Need to restrict product additions based on core product purchases
criticalMentioned by 1 merchants
Impact: Potential loss of sales if add-on products are ordered without core products.
Market Metrics
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