Shopify Plus Partner

Shopify Enterprise Integrations & ERP Sync Agency

Q: Can you integrate Shopify with NetSuite or SAP without an off-the-shelf connector?

Yes. We build custom, bi-directional integration layers using Shopify's Admin GraphQL API and NetSuite/SAP REST or SOAP APIs. Our approach avoids third-party connector licensing fees and gives you full control over field mappings, transformation logic, and retry behaviour.

Q: How do you ensure inventory never drifts between Shopify and our ERP?

We use Shopify's real-time inventory webhooks (not polling) combined with idempotent write operations and conflict-resolution logic in the ERP. Every sync event is logged, and we implement dead-letter queues so no update is silently lost.

Q: Can you set up real-time Klaviyo flows from Shopify order data?

Yes. We configure Shopify order webhooks to deliver events to Klaviyo within sub-100ms of creation. This unlocks immediate post-purchase flows, cart abandonment recovery, and LTV segmentation that stale polling connectors can never match.

Q: Do you support multi-carrier shipping label generation and tracking?

Yes. We integrate Shopify with USPS, FedEx, UPS, Royal Mail, DPD, and ShipStation — covering rated quote calculation at checkout, label generation on fulfilment, and tracking webhook ingestion to update order records automatically.

Q: What happens when an integration fails? Do you provide monitoring?

Every integration we build includes a monitoring layer: health-check endpoints, Slack/email alerts on delivery failures, dead-letter queue inspection, and weekly integration health reports. We offer ongoing SLA retainer cover for critical integrations.

Real-time ERP, CRM, and global shipping carrier synchronisation without adding a millisecond to your page load.

Book an Integration Architecture Call →See our Custom App Dev work

✓ Overlapping US (EST) & UK (GMT) sprint hours✓ 100% Code ownership & clean GitHub handover✓ Fixed-scope & fixed-price quotation

Shopify Enterprise Integrations & ERP Sync Agency Architecture Blueprint

THE INTEGRATION PROBLEM

Plugin-based integrations break exactly when your business is growing fastest

Most Shopify merchants start with app-store integrations — Zapier, native connectors, CSV exports. These work at low volume. Under enterprise scale they become a liability: duplicate orders, inventory drift, delayed fulfilment, and silent data loss.

⚠ Avg. 4-hour sync lag with polling

Inventory Drift & Overselling

Polling-based inventory sync from ERP/WMS introduces lag. Orders arrive for out-of-stock SKUs, fulfilment fails, and customer trust erodes.

⚠ 37% of Plus merchants hit connector failures

Brittle App-Store Connectors

Third-party integration apps have rigid field mappings, version coupling, and go offline during Shopify API updates — leaving your ops team firefighting.

⚠ Avg. 6hr Klaviyo event delay without webhooks

CRM & Marketing Data Silos

Without real-time order and behaviour data in Klaviyo or HubSpot, your segmentation is stale — post-purchase flows fire late, LTV modelling is inaccurate.

⚠ USPS, FedEx, Royal Mail, DPD, ShipStation

Carrier Rate & Label Complexity

Multi-carrier shipping with real-time rated quotes, label generation, and tracking webhook ingestion requires custom code — not off-the-shelf apps.

OUR INTEGRATION ARCHITECTURE

Event-driven webhooks, not polling — built on Shopify's Admin GraphQL API

We build bi-directional integrations using Shopify's webhook and Admin GraphQL API as the single source of truth — routing events in real time to your ERP, CRM, and logistics platform via a lightweight, monitored middleware layer.

✓Shopify webhooks → event router (Node.js) → ERP/WMS (NetSuite, SAP, Brightpearl)

✓Order and customer events → Klaviyo, HubSpot, Omnisend in real time (sub-100ms delivery)

✓Multi-carrier shipping: rated quotes, label print, tracking ingest (USPS, FedEx, Royal Mail, DPD, ShipStation)

✓Custom payment gateway integrations and reconciliation feeds

✓Inventory sync with conflict resolution and idempotent retry queues

✓Monitoring, alerting, and dead-letter queues — integration visibility in a single dashboard

VERIFIED TECH STACK

Shopify Admin GraphQL API

Platform

Primary data source for orders, inventory, and customers

Node.js Webhook Service

Backend

Event-driven integration router with retry and idempotency

Klaviyo & HubSpot

CRM / Marketing

Real-time event streaming for segmentation and flows

NetSuite & SAP

ERP

Bi-directional order, invoice, and inventory sync

ShipStation & Royal Mail

Logistics

Rated quotes, label generation, tracking webhooks

Redis / SQS

Queue

Durable message queuing with dead-letter and retry logic

PROVEN RESULTS · ERP + CRM Integration Build

NetSuite + Klaviyo integration cut manual fulfilment ops by 14 hours per week

A UK multi-brand apparel group was syncing NetSuite with Shopify via CSV exports every 4 hours — causing daily inventory drift and late Klaviyo flows. We built a real-time webhook router with idempotent NetSuite write operations and sub-100ms Klaviyo event delivery, eliminating all manual reconciliation.

14hrs/wk

Manual ops eliminated

<100ms

Klaviyo event delivery

Oversell events post-launch

99.97%

Webhook delivery uptime

“We went from daily fire-fighting on inventory to full confidence in our data. The Klaviyo flows now fire within seconds of an order — our post-purchase CLTV is up 22%.”

— Head of Digital Operations, UK Multi-brand Apparel Group

WHAT YOU GET

Engineering deliverables checklist

Every engagement includes fixed scope, clear milestone verification, and direct engineer access with zero junior account managers in between.

✓

Integration architecture design

Event flow diagrams, API contract specs, field mapping documentation

Week 1

✓

Webhook service build

Node.js event router with retry queues, idempotency keys, dead-letter logging

Week 1–3

✓

ERP sync (NetSuite / SAP)

Bi-directional order, inventory, and invoice sync with conflict resolution

Week 2–4

✓

CRM event streaming

Real-time Klaviyo / HubSpot event delivery for orders, refunds, and behaviour

Week 2–3

✓

Carrier integrations

Multi-carrier rated quotes, label generation, tracking ingest

Week 3–5

✓

Monitoring & alerting

Integration health dashboard, PagerDuty-style alerts on failure thresholds

Week 5–6

TECHNICAL FAQS

Frequently asked questions

Specific answers to common technical, timeline, and architectural questions from US and UK ecommerce directors.

Can you integrate Shopify with NetSuite or SAP without an off-the-shelf connector?+

Yes. We build custom, bi-directional integration layers using Shopify's Admin GraphQL API and NetSuite/SAP REST or SOAP APIs. Our approach avoids third-party connector licensing fees and gives you full control over field mappings, transformation logic, and retry behaviour.

How do you ensure inventory never drifts between Shopify and our ERP?+

We use Shopify's real-time inventory webhooks (not polling) combined with idempotent write operations and conflict-resolution logic in the ERP. Every sync event is logged, and we implement dead-letter queues so no update is silently lost.

Can you set up real-time Klaviyo flows from Shopify order data?+

Yes. We configure Shopify order webhooks to deliver events to Klaviyo within sub-100ms of creation. This unlocks immediate post-purchase flows, cart abandonment recovery, and LTV segmentation that stale polling connectors can never match.

Do you support multi-carrier shipping label generation and tracking?+

Yes. We integrate Shopify with USPS, FedEx, UPS, Royal Mail, DPD, and ShipStation — covering rated quote calculation at checkout, label generation on fulfilment, and tracking webhook ingestion to update order records automatically.

What happens when an integration fails? Do you provide monitoring?+

Every integration we build includes a monitoring layer: health-check endpoints, Slack/email alerts on delivery failures, dead-letter queue inspection, and weekly integration health reports. We offer ongoing SLA retainer cover for critical integrations.

RAPID 3-DAY TURNAROUND · NO OBLIGATION

Let's audit your store architecture

Book an architecture call or send your store URL for a free 40-point technical code, speed, and conversion audit. Delivered in 3 business days.

Book an Integration Architecture Call See our Custom App Dev work