# Enterprise application integration that makes your systems work as one

> ERP, CRM, eCommerce and payment integrations for Canadian businesses. Real-time data flow, secure APIs and middleware, built and monitored by NPCoding.

Source: https://npcoding.ca/services/enterprise-application-integration/

Your CRM, ERP, online store and finance tools should speak the same language. We map your systems, remove bottlenecks and build secure, tested integration layers so information moves as fast as your business does.

Part of the [Software & App Development](https://npcoding.ca/services/ai-software-engineering/) capability.

## Overview

Disconnected systems are expensive: orders re-keyed by hand, stock levels that don't match, invoices that go out late and reports nobody trusts. Enterprise application integration replaces those fragmented workflows with unified, monitored data pipelines.

We've connected online stores to the Priority ERP and to weighing carts so a farm knows exactly what was ordered, weighed and shipped; synchronized real-time stock status to storefronts; and pulled institutional data into a university research portal through APIs. The pattern is always the same: map the systems, design a resilient integration layer, and minimize downtime while we switch it on.

## Is this the right service?

Choose Enterprise Application Integration when:

- Data is re-keyed between your ERP, CRM, store or finance systems
- You need reconciliation, retries and recovery when one system fails or changes
- Systems you don't control must stay in sync with ones you do

Consider instead:

- [API Development](https://npcoding.ca/services/api-development/) when you're designing an API that partners, apps or customers will build on
- [AI Agents & Business Automation](https://npcoding.ca/services/ai-development/) when a person's judgment is the bottleneck (reading, classifying, drafting), not the data plumbing

## What's included in enterprise integration

- **ERP integration:** Connect your ERP (for example Priority) to eCommerce, warehouse, finance and customer-facing systems.
- **CRM & marketing automation:** Sync leads, customers and activity between your CRM, website, marketing tools and support desk.
- **Payments & invoicing:** Payment processing, instalment plans and automatic invoice issuing wired into your order flow.
- **Inventory & logistics sync:** Real-time stock, pricing and shipping status across stores, marketplaces and warehouses.
- **Middleware & integration platforms:** Cloud-native middleware, message queues and iPaaS setups that decouple systems and scale safely.
- **Data migration & modernization:** Move data out of legacy systems without losing history, and modernize integrations step by step.

## Designed for the day a system says no.

An illustrative order integration between an online store and an ERP. The contract states what each side promises; the failure paths state what happens when one side doesn't deliver. (Illustrative example.)

Contract:

- `order_id`: Unique, and reused on retries, so the ERP never books an order twice
- `lines[].sku`: Must exist in the ERP; unknown SKUs go to review, not to the warehouse
- `totals`: Recalculated and reconciled; a mismatch stops the sync and raises an alert
- `status`: Moves forward only: received, picked, shipped, invoiced

Failure paths:

- **The ERP doesn't respond:** Retry with backoff, then park the order in a queue and alert
- **The same order arrives twice:** Recognized by its ID and ignored, not booked twice
- **Data fails validation:** Quarantined with the reason, so it's fixed once
- **A sync fails overnight:** Replayed from the queue once the cause is fixed, with a reconciliation report

## How AI assists integration work.

Where AI helps:

- Reading API documentation and legacy data formats to draft field mappings
- Generating connectors and transformation code for review
- Producing reconciliation and edge-case tests
- Summarizing integration logs when a job fails

What our experts own:

- Data contracts and the integration architecture
- Failure handling, retries and duplicate protection
- Security of credentials and data in transit
- Go-live and cutover plans

## How NPCoding delivers it

1. **Map your systems:** Inventory the applications, data flows, owners and pain points across the business.
2. **Design the integration layer:** Choose APIs, middleware or events, define data contracts and plan for failure.
3. **Build the connectors:** Develop and secure the integrations, with retries, logging and alerting built in.
4. **Test with real data:** Validate edge cases, volumes and reconciliation before go-live.
5. **Monitor & maintain:** Dashboards and alerts catch issues early; we evolve integrations as systems change.

## Connected capabilities

- [QA & Release Assurance](https://npcoding.ca/services/qa-testing/): Reconciliation tests with realistic volumes and failure cases run before go-live, and on every change after.
- [DevOps & Managed Operations](https://npcoding.ca/services/devops-managed-operations/): Integration jobs get monitoring, alerts and documented recovery steps, so a failed sync is caught and replayed quickly.

## How we build with AI

Integrations touch sensitive business data, so choose the development approach that fits your policies for code and data access.

- [Private / Local AI Engineering](https://npcoding.ca/services/private-ai-engineering/): AI-powered software delivery in a controlled processing environment.
- [Claude Code & Codex Engineering](https://npcoding.ca/services/claude-code-codex-engineering/): AI-accelerated delivery with Claude Code and OpenAI Codex, directed by experienced engineers.

## Why NPCoding

- **No more double entry:** Data is captured once and flows everywhere it's needed — accurately.
- **Real-time visibility:** Stock, orders and finances you can trust, across every platform.
- **Fewer silos:** Teams collaborate on shared, consistent information instead of spreadsheets.

## Tools and technologies

REST & GraphQL APIs, Webhooks, Priority ERP, Node.js, PHP, Message queues, Make / Zapier, SQL, Cloud functions

## Industries

- [Manufacturing](https://npcoding.ca/industries/manufacturing/)
- [eCommerce](https://npcoding.ca/industries/e-commerce/)
- [Finance](https://npcoding.ca/industries/finance/)
- [Healthcare](https://npcoding.ca/industries/healthcare/)

## Related work

- [Gato: one fashion brand, three storefronts — web, mobile apps and a private wholesale portal](https://npcoding.ca/case-studies/gato/): An online store, two native shopping apps and a password-protected wholesale catalog for a contemporary fashion brand that sells to both consumers and trade buyers.
- [Hebrew University: a researcher portal powered by the university's own systems](https://npcoding.ca/case-studies/hebrew-university/): A fully custom English portal that shows researchers every instrument available for rent across departments and areas of expertise — with data pulled live from the university's systems through an API.
- [Nature's Chef: a farm-to-door store wired into the Priority ERP and weighing carts](https://npcoding.ca/case-studies/natures-chef/): An eCommerce site for a third-generation fruit and vegetable farmer, connected to the Priority ERP and to weighing carts so the business knows exactly what was ordered, weighed and shipped.
- [TennisGuys: a Shopify store for tennis players, connected to the company's systems](https://npcoding.ca/portfolio/tennisguys/): An online store dedicated exclusively to tennis — rackets, shoes, balls, apparel and accessories from leading brands — built on Shopify and adapted to the company's additional systems.

## Frequently asked questions

### What is enterprise application integration (EAI)?

EAI is the practice of connecting separate business applications — ERP, CRM, eCommerce, finance, HR — so they share data and trigger each other's processes automatically, instead of relying on manual exports and re-keying.

### Can you integrate with our ERP?

Very likely. We've integrated online stores with the Priority ERP (including weighing carts and automatic invoicing) and work with any system that exposes an API, database access or file-based exchange. We start by reviewing what your ERP supports.

### Should we use point-to-point APIs or middleware?

Direct API connections are fast and cheap when you connect two or three systems. As the number of systems grows, middleware or an event-driven layer keeps integrations maintainable and prevents one change from breaking everything. We'll recommend the simplest architecture that will still hold up in two years.

### What happens when one of the connected systems changes?

Integrations are built with versioned data contracts, monitoring and alerting, so changes are detected early. We can maintain the integrations on an ongoing basis and adapt them as your systems evolve.

Discuss your integration: https://npcoding.ca/contact/?topic=build&service=engineering#enquiry

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NPCoding · AI-powered software & app development · Toronto, Canada · support@npcoding.com · https://npcoding.ca/contact/