All stores

K-Master

Inventory protection and automated shipping calculation for a collectible toy retailer.

What we did

  • Custom Logic
  • Shopify Functions
  • Automation

What they got

  • Shipping Rule Engine
  • Discount System
Business
Systems & Integrations
Time on the build
3 weeks
Kind of job
Store operations

K-Master

Project Overview

A custom shipping and discount rule engine built directly within Shopify.
Dynamic pricing based on region, weight, and customer segment — all without apps.


The Challenge

Default shipping options couldn't handle the brand's multi-tier structure.
They needed logic like "Free shipping for wholesale customers above $500", impossible through standard settings.


The Approach

We developed custom Shopify Functions to manage discount and shipping logic dynamically.
Every rule is editable by non-developers through metafields.


Key Features

  • Region-based shipping logic
  • Discount tiers by customer group
  • Real-time validation during checkout

Results & Impact

100% elimination of manual overrides
+12% checkout completion rate


Technical Stack

Shopify Functions  
Metafields / Admin API  
Liquid Logic & Custom Scripts  

Insight

Custom logic makes Shopify feel like your own backend — efficient, lightweight, and native.