Custom ERP Integration Services That Connect Your Business
You need custom ERP integration that works the first time. Whether you are looking for a reliable ERP integration company to connect your existing platforms, need dedicated ERP integration services for a complex multi-system environment, or want to integrate ERP systems that have never talked to each other properly, the challenge is the same: getting your data to flow without breaking what already works. Your team delivers end to end ERP integrations, from API development and middleware configuration to real time data sync and legacy system connectivity. That means connecting ERP software across departments, building custom ERP integration for growing businesses with scaling needs, and making sure everything runs cleanly after go live. Want to get started? Request your ERP integration quote today and tell us what you need connected.
Custom ERP integration typically costs between $15,000 and $150,000 depending on the number of systems, data complexity, and level of customisation. A straightforward two system integration takes 4 to 8 weeks. Enterprise scale projects with multiple platforms take 3 to 6 months.
Core Capabilities and Features
How Custom ERP Integration Works
Most ERP integration projects go wrong for the same reason: someone connects two systems without mapping the data properly first. Fields do not match. Records duplicate. Reports break. And the team spends more time fixing the integration than they saved by building it.
- Discovery and system audit: mapping every system you use, how data moves between them (or does not), and where the bottlenecks sit, usually taking 3 to 5 days
- Integration architecture: designing the data flow, choosing between API, middleware, or hybrid approaches, and defining how each system will send and receive information
- Go live and monitoring: deploying to production, setting up automated error alerts, and monitoring performance for the first 30 days
What ERP Integration Typically Covers
ERP integration is not a single task. It is a set of connections between systems that need to share data reliably and in real time.
- API development and configuration: custom REST and SOAP APIs that allow your ERP to communicate with CRMs, ecommerce platforms, payment processors, inventory tools, and anything else with an accessible endpoint
- Data mapping and transformation: mapping every field across systems, defining transformation rules, and building validation layers to catch mismatches before they corrupt your reporting
- Real time sync and automation: when an order comes in on your ecommerce platform, your ERP knows immediately, and when inventory drops below a threshold, purchasing gets notified automatically
Legacy System Integration and Security
If you are running an older ERP (and many businesses still are), integration gets more complicated. Legacy systems often lack modern APIs, use outdated data formats, or require custom middleware to talk to anything built in the last decade.
- Legacy system integration: connecting AS/400 systems to cloud platforms, migrating COBOL based data into modern databases, and building wrapper APIs around systems that were never designed to be integrated
- Security and compliance: encrypted data transfer (TLS 1.2 or higher), role based access controls, audit logging, and GDPR compliant data handling as standard
- SOC 2 aligned practices, IP whitelisting, and detailed compliance documentation for clients in regulated industries (fintech, healthcare, legal tech)
Why It Matters
If your systems do not talk to each other, your team spends hours every week copying data between platforms, fixing errors that should never have happened, and making decisions based on reports that are already out of date by the time they are pulled. That is not just an operational problem. It is a competitive one. Your competitors who have clean, automated data flows are making faster decisions, shipping orders more accurately, and spending less on manual processes that add zero value. And here is the part nobody talks about: bad integrations are worse than no integrations. A broken sync that creates duplicate orders or misreports inventory levels can cost you more in a single week than the entire integration project would have cost to do properly. The businesses that get the best results are the ones that invest in getting the plumbing right, even when it is not the most exciting part of the roadmap. It is the work that makes everything else possible.
By the Numbers
$78.15B
Projected global ERP market size for 2026, up from $71.62B in 2025. Businesses across every industry are investing heavily in ERP systems and the integrations that make them work.
Source: Mordor Intelligence, 2026
55-75%
ERP implementation failure rate according to multiple analysts. Poor integration planning is consistently cited as one of the top causes. Getting the connections right between systems is not optional.
Source: Gartner / Panorama Consulting, 2025
61%
Of organisations experienced challenges specifically in integrating their ERP with other business systems. This is the single most common technical pain point in ERP adoption.
Source: Panorama Consulting Group, 2024
95%
Of companies report significant process improvements after a successful ERP implementation. When the integration is done properly, the returns are real and measurable.
Source: TrueList ERP Report, 2024
$15.24B
The ERP integration and consulting market is projected to grow by $15.24 billion between 2025 and 2030 at a 10.1% CAGR. Integration demand is accelerating faster than the ERP market itself.
Source: Technavio, 2025
"The biggest mistake we see with ERP integration is treating it as a technical task instead of a business decision. The technology part is the easy bit. Understanding which data needs to go where, and why, is what separates integrations that create value from ones that just create complexity."
Technologies
Our Tech Stack
Our Process
How we turn ideas into reality.
Discovery and System Audit
Every system you use is mapped, including how data moves between them (or does not), and where the bottlenecks sit. This usually takes 3 to 5 days. If you do not know exactly what data lives where and in what format before you start connecting systems, you are building on sand.
Integration Architecture
The data flow is designed, choosing between API, middleware, or hybrid approaches, and defining how each system will send and receive information. Choosing a tool before understanding the problem often leads to rework later. Middleware, iPaaS, custom API: each has trade offs.
Development and Testing
The integration is built in stages, testing each connection point against live data before moving to the next. No big bang deployments. Error handling and monitoring are built in from the start. Integrations break. The question is whether you find out from your monitoring dashboard or from an angry customer.
Go Live and Monitoring
Deployment to production, automated error alerts set up, and performance monitored for the first 30 days. If something breaks at 2am, the team knows before you do. A rollback plan is always in place. If something goes wrong on go live day and there is no way to revert, that is an unnecessary risk.
Pricing
Investment Overview
Number of Systems and Data Complexity
Connecting two platforms is straightforward. Connecting five or ten with bidirectional data flows multiplies the work significantly. Simple record syncing (contacts, invoices) is faster to build than complex transformations involving conditional logic, multi currency conversions, or real time inventory calculations.
Legacy Systems Without Modern APIs
Older systems without modern APIs require custom middleware or wrapper APIs, which adds engineering time and testing effort. If you are connecting two modern cloud platforms with standard APIs, expect to invest $15,000 to $40,000. If you are integrating legacy systems or multiple platforms, the range is $60,000 to $150,000 or more.
Compliance and Security Requirements
Regulated industries require additional security layers, audit logging, and documentation. This adds 15 to 25 percent to the total project cost. Every integration point is a potential vulnerability, so encrypted data transfer (TLS 1.2 or higher), role based access controls, and GDPR compliant data handling are built in as standard.
Everything we do at Techneth is built around making data move reliably between the systems that matter. If you want to understand our approach before committing, you can read more about our team and how we work. Or explore the full range of digital product and development services we offer, like custom erp integration. And if you already know what you need, get in touch directly and we will find time to talk.
Frequently Asked Questions
Everything you need to know about this service.
- How long does a custom ERP integration project take?
- A straightforward integration between two cloud platforms with well documented APIs typically takes 4 to 8 weeks. More complex projects involving multiple systems, legacy platforms, custom middleware, or strict compliance requirements usually run 3 to 6 months. The timeline depends primarily on the number of connection points and the quality of the existing data. Every project is scoped individually and you receive a realistic timeline before work begins.
- What ERP platforms do you integrate with?
- All major ERP systems are supported including SAP, Oracle NetSuite, Microsoft Dynamics 365 Business Central, Odoo, Sage, Acumatica, and QuickBooks Enterprise. Custom built ERP systems are also integrated, which many growing businesses rely on. If your platform has an API or can export data in a structured format, a connection can be built to it.
- Can you integrate a legacy ERP system with modern software?
- Yes. Legacy integration is one of the most common requests handled. Older systems often lack REST APIs, use flat file exports, or require custom middleware to communicate with modern platforms. Wrapper APIs are built, message queues are used, and middleware is configured to bridge the gap. The approach depends on your specific system, but the result is the same: your legacy data flows into your modern tools without manual re entry.
- What is the difference between API integration and middleware?
- API integration creates a direct connection between two systems. It is faster to build and works well when both systems have well documented APIs. Middleware sits between multiple systems and manages the data flow centrally. It is better for complex environments with many platforms because it reduces the number of point to point connections. The right approach is recommended based on your system landscape, not on what is easiest to build.
- How do you handle data security during integration?
- All data transfers use TLS 1.2 encryption or higher. Role based access controls are implemented, audit logs are maintained for every data transaction, and GDPR compliant data handling practices are followed as standard. For clients in regulated industries, this extends to include SOC 2 aligned controls, IP whitelisting, data masking, and documented security review processes.
- Do we own the integration code and documentation after the project?
- Yes. Full ownership of all code, configuration, documentation, and infrastructure is transferred to you on project completion. This is written into every contract. Detailed technical handover documentation is also provided so your internal team or a future partner can maintain and extend the integration without depending on us.
Ready to get a quote on your custom erp integration?
Tell us what you are building and we will put together a scoped proposal within 3 business days. Here is what happens when you reach out:
- 1You fill in the short project brief form (takes 5 minutes).
- 2We review it and come back with initial thoughts within 24 hours.
- 3We schedule a 30 minute call to align on scope, timeline, and budget.
- 4You receive a written proposal with fixed price options.
No commitment required until you are ready. Request your free custom erp integration quote now.
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