Warehouse aisle with tall shelving stocked with inventory

ServicesERP, WMS & PIM integrations

Systems that agree
with each other

The store is one system among several. Integrations decide whether orders, inventory, and product data flow reliably — or whether your team reconciles spreadsheets every Monday.

Discuss the project Run a free audit

What this covers

ERP order and finance sync

Orders, refunds, and adjustments flowing into the ERP with the edge cases handled, not ignored.

WMS and 3PL connections

Fulfilment, tracking, and inventory events synced both directions with retry and alerting.

PIM and catalog pipelines

Product data mastered once and published to Shopify with validation, not copy-paste.

Monitoring and incident paths

Integrations that tell you when they fail — before your customers do.

You are in the right place if

Inventory on the site disagrees with the warehouse often enough to cost sales
Someone re-keys orders between systems every day
A legacy middleware nobody understands is one outage from a crisis
You are adding a second market, brand, or warehouse and the current glue will not stretch

Work like this runs as a scoped $10k+ engagement: blueprint first, then build, then launch QA — with a named technical owner and no silent outsourcing of the thinking.

All services Shipping & freight integrations Migration hub

What you can build on Shopify

Core Shopify surfaces, built as services.

We work across the main surfaces Shopify documents for developers: apps, Functions, checkout and account extensions, themes, headless storefronts, integrations, B2B and agents.

Commerce integrations

Shipping, fulfillment, ERP, WMS, payments and channels wired to Shopify with retries and audit trails.

Carrier service apps for live shipping rates at checkout
Fulfillment service apps for 3PL and dropship partners
Inventory, order and returns sync with ERP and WMS systems
Sales channel apps that list merchant products on marketplaces and social apps
Payments app integrations for gateways and buy-now-pay-later, subject to Shopify approval
Webhook and event pipelines with dedupe, retries and dead-letter handling

Happify works across Shopify’s main extensibility surfaces: public and custom apps, Functions, checkout and account extensions, themes, headless storefronts, integrations, B2B, AI agents, store builds and migrations.

All Shopify services

Difficult logic is the specialty.

Discuss the project

Systems that agreewith each other

ERP order and finance sync

WMS and 3PL connections

PIM and catalog pipelines

Monitoring and incident paths

Core Shopify surfaces, built as services.

Commerce integrations

Difficult logic is the specialty.

Systems that agreewith each other

ERP order and finance sync

WMS and 3PL connections

PIM and catalog pipelines

Monitoring and incident paths

Core Shopify surfaces, built as services.

Commerce integrations

Difficult logic is the specialty.

Systems that agree
with each other

Systems that agree
with each other