Apps solve common problems well. They struggle when your catalog logic is specific to how you manufacture, price or fulfill.

Custom Shopify feature flow
Custom features stay maintainable when they are scoped, tested and owned.
Scope first

Write the shopper path in plain steps before anyone opens the code editor.

Custom candidate Why apps struggle
Product configurators Dependent options and inventory links
Dynamic pricing External quotes or metafield rules
Wholesale layers Company identity and catalogs
ERP workflows Post-purchase status sync

Scoping questions we ask first

  1. Where does variant inventory live?
  2. Must configuration persist in cart and fulfillment exports?
  3. What happens when an option is out of stock mid-session?

Implementation approach

Prototype the happy path with clear separation between UI, pricing rules and cart API calls. Add admin-friendly metafields so merchandisers can adjust copy without deployments.