Custom Shopify development
What your store needs and no theme or app can solve.
Custom apps, checkout and discount rules, Shopify Plus, B2B selling, headless stores and ERP integrations. A team specialized in Shopify, with a fixed scope, timeline and price before writing any code.
Fixed price and timeline per projectNo commitment.
- 12+ yearsbuilding online stores
- 120+ brandsin Mexico and abroad

// Volume discount for B2B customers
export function run(input) {
const customer = input.cart.buyerIdentity;
if (customer?.isB2B) return
discountByPieces(input.cart.lines);
return NO_DISCOUNT;
}At checkout: the wholesale customer sees their volume price without asking for a quote.
- Shopify Functions
- Checkout UI
- Admin API
- Liquid
- Hydrogen
- Flow
8 types of development
What do you need to build on Shopify?
Pick a type and see what we build, with which technology and what we check before quoting.
Custom apps
An app made for the way you operate.
When no app in the Shopify App Store solves your case, or you pay for three to get one thing done, we build your own: private to your store or public for other merchants.
Technology
- Admin API
- Polaris
- Node.js
Examples of what we build
- Admin panel for your team
- Your own inventory or restocking rules
- Connection to a supplier or internal system
- Public app with documentation and support
Before building, we check whether an existing app already solves it. Sometimes that is the better option.
Checkout and discounts
Checkout, shipping and discount rules Shopify does not ship with.
With Shopify Functions and checkout extensions we create discounts, conditional shipping and payment methods, and custom blocks in the purchase flow.
Technology
- Shopify Functions
- Checkout UI
- Rust / JavaScript
Examples of what we build
- Discounts by volume or by customer type
- Hide or rename payment and shipping methods
- Custom fields and notices at checkout
- Replacement for the old Shopify Scripts
Before building, we confirm your plan: some checkout extensions are only available on Shopify Plus.
Shopify Plus
Plus, only if you truly need it.
We evaluate whether Plus suits you, migrate you to it and take advantage of what it offers: custom checkout, B2B, multiple stores and automation with Flow.
Technology
- Shopify Plus
- Flow
- Launchpad
Examples of what we build
- Evaluation and business case
- Migration from standard Shopify
- Multiple stores and international markets
- Automations with Shopify Flow
Before building, we run the numbers with you. Not every store needs Plus, and part of our job is telling you so.
B2B and wholesale selling
Your wholesale customers order on their own, with their prices.
Private catalogs, customer-specific pricing, minimum orders and credit terms, without quoting over WhatsApp.
Technology
- Shopify B2B
- Functions
- Metafields
Examples of what we build
- Catalogs and price lists per customer
- Minimum order and pieces per case
- Payment on credit and approvals
- Ordering portal for distributors
Before building, we review your plan: Shopify's native B2B features are part of Plus. Without Plus, we solve it with apps or custom development.
Headless store
A shopping experience without the limits of a theme.
We build the front end of your store with our own technology and Shopify behind it, for experiences a theme does not allow.
Technology
- Hydrogen
- Next.js
- Storefront API
Examples of what we build
- Brand sites with editorial content
- Interactive product experiences
- One catalog across several sites
- Integration with a content management system
Before building, we compare costs: it costs more to build and maintain. For most stores, a well-built theme is enough.
Integrations
Your store connected to the systems you already use.
We connect Shopify with your ERP, your CRM, your warehouse or your payment gateway, so data is never entered twice.
Technology
- Admin API
- Webhooks
- GraphQL
Examples of what we build
- ERP such as SAP Business One
- CRM such as HubSpot or Salesforce
- Warehouses and logistics operators
- Payment gateways in Mexico
Before building, we check where you sell: if you also sell on marketplaces, the Fenicia platform already covers much of it.
Theme and sections
Custom sections your team edits without coding.
We develop custom sections and blocks in Liquid for Online Store 2.0, with the fields your team needs to edit.
Technology
- Liquid
- Online Store 2.0
- Metafields
Examples of what we build
- Product sections with technical information
- Comparison tools and size guides
- Reusable campaign pages
- Content driven by metafields
Before building, we size the change: if you want to renew the whole store, see Improve your store.
Subscriptions
Recurring sales without chasing every customer.
We set up and customize subscriptions and recurring boxes with specialized apps, and connect them to your operation.
Technology
- Recharge
- Bold
- Subscriptions API
Examples of what we build
- Subscription with a discount
- Build-your-own recurring boxes
- Subscriber portal
- Renewal reports
Before building, we choose the app based on your model and volume, before developing anything custom.
Before quoting
Does what you need live in Shopify or across your whole operation?
This page is for development inside Shopify. If your challenge includes marketplaces, branches or your ERP, Fenicia 360 fits better.
Custom solutions on Shopify
- Your Shopify store needs something a theme or an app cannot provide.
- The change lives in your store: checkout, discounts, B2B, apps, design.
- Our team specialized in Shopify builds it.
Fenicia 360
- You sell on Shopify, Mercado Libre, Amazon and more, and want a single inventory.
- You need point of sale, CFDI (Mexico's electronic invoice) invoicing, shipping labels or your ERP connected.
- We implement it on the Fenicia platform, tailored to your business.
How we work
Deliveries you see working every week.
Timeline fixed in the proposal
- 01
Discovery
We understand the business problem and what your store does today.
- 02
Architecture
We define how it is built and document it in the scope.
- 03
Design
We design what your customer or your team will see and use.
- 04
Development
Weekly deliveries on a test store.
- 05
Testing
We test with real data before publishing.
- 06
Launch
We publish, document and stay with you.
How it is hired
A project or a team every month
Development with a defined scope is quoted as a project. If your store needs changes and integrations all the time, a dedicated specialist suits you better.
Project
Development at a fixed price
Scope, timeline and price defined before we start.
- Technical scope document
- Weekly deliveries on a test store
- The code and its documentation are yours
- 60% upfront and 40% on delivery. 15% discount for payment in full, or 3 to 12 interest-free installments
Dedicated monthly plan
A specialist for your store
$32,849 MXN / month
- Assigned specialist and weekly call
- Integrations with ERP, CRM and logistics
- Automations and campaign pages
- Incidents resolved in under 24 hours
New features built from scratch are quoted separately, as a project.
See the support plansBrands that develop their store with us
Frequently asked questions
Questions about Shopify development
Have a technical case that does not appear here? We will tell you how we would solve it.
Talk to an expertDo I need Shopify Plus?
I used Shopify Scripts. What do I do now?
Is the code mine?
How long does it take and how much does it cost?
Is a headless store right for me?
I want to connect Shopify with my marketplaces. Is this it?
Tell us what you want to build.
We reply with how we would do it, how long it would take and how much it costs.
- Proposal with a fixed timeline and price
- The code is yours






