Smart Collection Sort with Discount Ranking and OOS Push-Down
The Opportunity
A sorting app for collection pages that adds discount-based ranking and automatically pushes out-of-stock items to the bottom of collections. It helps merchants surface the best deals while keeping unavailable products from cluttering the buying experience.
"Merchants want collection sorting that ranks products by discount percentage and keeps out-of-stock products below in-stock items regardless of sort order."
Market Validation
Detailed Analysis
Proposed Solution
Build a collection sorting app that calculates discount percentage from compare-at price vs price, supports ascending/descending discount sort, and applies an out-of-stock-last rule across all sort modes. The app should integrate with collection pages and work with automated collection rules where possible.
Target Audience
Shopify merchants with promos, sale collections, large catalogs, or frequent inventory fluctuations
Competitive Landscape
Collection filtering/sorting apps, merchandising tools, some advanced theme customization apps, Shopify Search & Discovery for limited sorting controls
Implementation Notes
Use storefront and backend logic to compute discount percentages from product pricing data, then expose custom sort rules in collection templates or via a storefront app proxy. For the OOS-last requirement, sync inventory status through webhooks and maintain sortable indexes or collection metafields so the storefront can render custom ordering consistently and efficiently without slowing collection pages.
Evidence from Merchants
Real quotes from Shopify community forums
"We need the following sorting options to be implemented: Discount: High to Low Products with the highest discount percentage should appear first."
"Out-of-stock (OOS) products should always be pushed to the bottom, regardless of the selected sorting option."
"This functionality is important for improving user experience and highlighting the best deals for customers."
Key Pain Points
Need for improved product sorting functionality
highMentioned by 1 merchants
Impact: Potential loss of sales due to poor user experience
Market Metrics
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