Every Shopify store eventually needs something the platform won’t do on its own — a bundle that prices itself, a fee that only applies to one kind of customer, stock that lives in someone else’s warehouse. We build those using Shopify’s own primitives, so they survive theme updates and don’t fight the platform.
Shopify Plus
Shopify Functions
Cart Transform
Metaobjects
Custom Apps
Admin & Storefront APIs
What We Build Inside Shopify
Organised by the Shopify mechanism that does the work, because that is what determines whether a build lasts.
01
Bundling & Dynamic Pricing
Merge separately-stocked products into a single purchasable bundle that prices itself as the customer configures it — while inventory still draws down on each component, so stock and fulfilment stay accurate.
Cart Transform · Shopify Functions02
Conditional Checkout Logic
Fees, discounts and rules that fire on customer type, payment method or cart contents. Applied inside checkout and visible to the customer before they pay, rather than reconciled afterwards.
Functions · Checkout Extensibility03
Client-Editable Content Models
Structured content your team extends without a developer — new bundles, new builder steps, new fitment data, all managed from the Shopify admin rather than booked in as a change request.
Metaobjects · Metafields04
Custom Shopify Apps
Private apps holding the business logic Shopify has no setting for — built for your store, rather than configured out of a marketplace listing that almost fits.
Custom apps · App Bridge05
Integrations & Live Data
WMS, ERP, carriers and review platforms wired in bidirectionally — live shipping rates returned into checkout, and webhooks keeping stock honest across every system that touches it.
Admin API · Carrier Service API · Webhooks06
Storefront Engineering
Product finders, filtered collections, deep mega menus and cart experiences that go past Shopify’s native limits — built to stay fast on catalogues with thousands of SKUs.
Liquid · Storefront API · AJAX Cart
Common Requests
Problems We Get Handed Most
Pick a problem to see what we build for it, and which Shopify mechanism does the work.
lion@shopify: ~/solutions
$lion solve custom-bundling
Problem
A kit is twelve SKUs. The customer wants to buy it once. Shopify wants to sell it twelve times.
What we build
Cart Transform merges the selection into a single bundle line with its own price, while inventory still draws down on each component — so picking, packing and stock counts stay correct.
Primitive
Cart Transform · Shopify Functions
Proven on
ProSpeed Racing
$lion solve credit-card-fee
Problem
Recover card processing costs from wholesale buyers — but only wholesale, and only when they actually pay by card.
What we build
A custom app calculates the fee on the order total and applies it in checkout, gated on both customer type and payment method. Retail customers never see it.
Primitive
Shopify Functions · Checkout Extensibility
Proven on
ProSpeed Racing
$lion solve custom-content
Problem
Every new bundle, step or fitment rule is a developer ticket. The merchandising team is blocked on us.
What we build
Content models move into Metaobjects, so the client creates and edits bundles from the Shopify admin. We stop being a bottleneck.
Primitive
Metaobjects · Metafields
Proven on
ProSpeed Racing
$lion solve supplier-stock
Problem
The item is in the supplier’s warehouse, not ours. Shopify says zero, so we lose the sale.
What we build
A supplier stock dashboard takes a CSV upload and enables Add to Cart for items available upstream, even while the store shows none on hand.
Primitive
Custom app · Admin API
Proven on
Guitar Brothers
$lion solve shipping-rates
Problem
Freight varies by dimension and weight. Flat rates lose money on some orders and lose customers on others.
What we build
Live carrier rates are returned into checkout from the shipping platform, priced on the real dimensions held against each product.
Primitive
Carrier Service API · Custom app
Proven on
ProSpeed Racing
$lion solve variant-remap
Problem
Waist by length is a two-dimensional grid. A thousand colourways are separate products. The customer just wants their size.
What we build
Colourways are linked with Metaobjects and the size grid collapses into one selector — without restructuring products or changing how the warehouse operates.
Primitive
Metaobjects · Custom filtering
Proven on
Titleys
Client Work
Shopify Case Studies
Four Shopify stores that hit a native limit, and what we built inside the platform to get past it.
ProSpeed Racing
Configured kits, conditional fees, live carrier rates
Automotive
Shopify Plus
Cart Transform
Metaobjects
Custom Apps
Cart Transform merges a configured kit into one bundle line while stock still moves per component
Metaobjects define each builder step, so ProSpeed launches new bundles without a developer
Carrier Service API returns live StarShipIT rates into checkout
Custom app applies a 1.5% card fee to B2B customers paying by card — and nobody else
Custom work on Shopify goes wrong in predictable ways. These are the four rules we hold to so it doesn’t.
Native primitives first
If Shopify has a mechanism for it, we use that mechanism — not a workaround that breaks at the next platform release.
Your team stays in control
Content models go in Metaobjects, so your merchandisers can extend them without booking developer time.
No app sprawl
One custom app doing your logic, instead of five marketplace apps fighting each other in the cart.
We work with your stack
Existing theme, existing agency, existing WMS — we integrate rather than insisting on a rebuild.
Words From Our Clients
“
Working with the team at LION Digital has been like a breath of fresh air. I almost gave up on working with an agency after 4 previous failed…
Ben Martin
Managing Director · G Life Watches
“
Fantastic Service and Staff. They were very friendly and easy to deal with, and gave a big boost to our online Traffic and Webstore.
Jake Di Blasi
Managing Director · Pen City
“
I can’t say enough good things about Lion Digital! From start to finish, their team has been nothing short of outstanding. They took the time to really understand…
Caitlin Probert
Online Manager · Chempro Online
“
These guys know what they are doing!! We have just begun our partnership with Lion but from the get go we have found them to be very thorough…
Tony Titley
Chief Executive Officer · W. Titley & Co
“
Working with the Lion team on our ESP migration to Klaviyo was seamless. They were always transparent with information, reporting, updates and needs – he was like an…
Heather Earl
eCommerce & Digital Marketing Manager · Nutrition Warehouse
“
James (our director) and Tom (the sales lead) really like the design you made. I’m very happy with what we have done with the design template!
Jenny Fang
Super Sleeper Pro
“
Where do I start? If you’re looking to invest in your eCommerce digital marketing, you won’t regret bringing LION on board. The entire team at LION are veterans…
Stephen Brumwell
Operations Lead · CATALO Natural Health Foods Ltd.
Tell Us What Shopify Won’t Let You Do
Send us the thing your store can’t currently do. We’ll tell you whether it’s a Shopify Function, a custom app, or something you shouldn’t build at all.