Bigmuscles Nutrition | Custom Gift Bundle Builder & Recharge API Integration
How Webfilaments designed a bespoke gift bundle builder and integrated Recharge subscription flows for Bigmuscles Nutrition, boosting AOV by 35%.
// The Challenge
Identifying the bottleneck.
Bigmuscles Nutrition wanted to increase customer retention and average order values by letting shoppers build personalized supplement boxes (choosing protein powders, pre-workouts, and shaker cups). Legacy subscription apps could not map multiple dynamic bundle line items, resulting in code conflicts in the cart database and preventing successful checkout.
// The Solution
Strategic engineering.
We built a bespoke, fully responsive Gift Bundle Builder using client-side reactive Javascript that communicates directly with Shopify's dynamic Cart AJAX API. We created custom middleware scripts that package separate product selections into a single parent-child bundle collection payload. We also integrated the Recharge Subscriptions API, passing specific metadata parameters to the Recharge contract so that recurring orders correctly match the initial custom bundle components.
// The Impact
Measurable business growth.
Average Order Value (AOV) increased by 35% within 60 days of launch. Subscription signup rates grew by 22%, and checkout errors were reduced to zero.
Want similar metrics for your store?
Get in touch to audit your current store performance and map out an optimization plan.