# Shopify Software Integrations

> Resilient Shopify integrations connecting ERP, CRM, PIM, WMS, 3PL, accounting and analytics systems with clear ownership and recovery.

Provider: EssDeeJay (The SJ Development)

Canonical page: https://www.thesjdevelopment.com/services/integrations

Photo: Matthew Henry / Burst (https://www.shopify.com/stock-photos/photos/receiving-shipping-box-on-ipad)

We make every critical commerce object accountable: one source of truth, explicit mappings, reliable delivery and a visible path to recovery.

## Who this service is for

- ERP or accounting migrations
- Multi-location inventory and fulfillment
- Product data managed in a PIM
- Stores replacing fragile point-to-point connectors

## Problems we address

### Systems disagree about the same order

Identifiers, status models and timing differ, forcing teams to reconcile what should be shared business truth.

### Failures are discovered by customers

A missed webhook or rejected payload has no alert, retry or reconciliation path until an order fails operationally.

### Platform changes create emergency work

Legacy REST calls, unsupported versions and undocumented mappings make quarterly API evolution difficult to absorb.

## What the engagement covers

### Explicit systems of record

Every product, inventory, customer, company, order, fulfillment and financial field has an owner and direction.

### GraphQL-first integration design

Current Admin API patterns, version strategy and efficient queries replace growing reliance on legacy REST behavior.

### Reliable event processing

HMAC verification, idempotency, filters, queues, retries and dead-letter handling protect near-real-time flows.

### Observable reconciliation

Dashboards and comparison jobs reveal missing, delayed or conflicting records before they become customer problems.

## Delivery process

### Model ownership

Define systems, entities, identifiers, field authority, timing, security and operational service levels.

### Design data contracts

Specify payloads, transformations, versioning, errors, replay and reconciliation behavior.

### Build and simulate

Implement APIs and event consumers, then test duplicates, ordering, outages and partial data.

### Cut over with control

Backfill, parallel-run, reconcile, monitor and transfer operational ownership.

## Deliverables

- Integration and source-of-truth architecture
- Entity, field and identifier mapping
- GraphQL Admin API services
- Webhook subscriptions and event consumers
- Queue, retry and idempotency controls
- ERP, PIM, CRM, WMS or 3PL connectors
- Backfill and cutover tooling
- Monitoring, reconciliation and support runbooks

## Frequently asked questions

### Can Shopify integrate with our ERP, CRM or 3PL?

Usually yes, provided the external system offers a workable API or file exchange. The important questions are entity ownership, data quality, timing, limits, error handling and how exceptions are reconciled.

### Should a Shopify integration use webhooks or polling?

Webhooks are efficient for near-real-time changes, but production integrations often combine them with targeted API reads and scheduled reconciliation. Webhooks can be duplicated, delayed or missed by downstream systems, so recovery matters.

### How do you migrate a Shopify integration from REST to GraphQL?

We inventory calls, map resources to GraphQL operations, redesign pagination and rate handling, validate output parity, run both paths where appropriate and cut over before the existing version becomes unsupported.

## Discuss a project

Share your website or product brief, business goals, current tools, budget and timeline at https://www.thesjdevelopment.com/contact. Scope, pricing and delivery dates are confirmed for each project.