What is enterprise application integration?

It's making the applications a business runs on — ERP, CRM, finance, HR — share data automatically instead of through exports, imports and re-keying. That can mean direct API connections, an integration layer, or wrapping a legacy system so modern tools can talk to it. The measure of success is simple: information entered once, used everywhere.

Can you integrate Salesforce or our ERP?

Yes — we work with the major CRM and ERP platforms, Salesforce included, plus the accounting and operations tools around them. We're not a reseller for any of them, so the integration is designed around your data flow, not a vendor's upsell.

What about our legacy system?

Usually it can stay. Legacy system integration means wrapping what works with a modern API so newer tools can use it — cheaper and safer than a rewrite. When a system genuinely is better replaced, we'll show you the numbers for both paths and let you choose.

What happens when a vendor changes its API?

The integration is monitored, so a breaking change shows up as an alert to us — not as invoices silently not arriving three weeks later. Under ongoing support, typically from £400 per month, we patch API changes as part of keeping the integration healthy.

How much does enterprise application integration cost?

An integration audit and plan starts from £4,000 — your application estate mapped, the re-keying costed in hours, and a sequenced plan. Builds start from £10,000, fixed-price, with milestone payments.

Enterprise Application Integration

Every step, with a team who's done it before

Somewhere in the estate is the legacy system nobody dares touch, and the fear is that connecting it means a risky rewrite. Usually it doesn't. Enterprise integration wraps what works with a modern API so ERP, CRM and finance finally share data — without disturbing what finance depends on.

Book a free 20-minute consultation

Intro call

A first call to understand your estate — the ERP, the CRM, the legacy system, and where your team re-keys data between them. Free, and it tells us whether a paid audit is even worth your money.
Audit & plan

From £4,000 we map your applications end to end, cost the re-keying in hours, flag the API and legacy constraints early, and hand you a sequenced integration plan — with no obligation to build it with us.
Connect & wrap

From £10,000 we connect ERP, CRM and finance, wrap legacy systems with modern APIs rather than replacing them, and leave documentation your team can maintain — the way we wired Pipedrive, SmartDocs and Xero into one flow.
Keep it healthy

Every integration ships monitored with automatic retries, so a broken vendor API becomes our alert, not your missing invoices. Ongoing support from £400 a month patches API changes as they come.

Platforms we've made work together

Pipedrive, SmartDocs and Xero wired into one contract-to-invoice flow for an events business, HR and identity platforms integrated behind Connect by CoCentric's frontline apps, and open banking connected inside Bonsai's wealth-planning product. Different stacks, same result — data moving without a person carrying it.

CRM & sales automation

CodeLeap automated contract management, sales pipelines and invoicing for a media group running exhibitions and events across the UK and US — replacing around 500 invoices a month raised by hand.
Read more
Connect by CoCentric

A secure chat and calling app for frontline workers, built for CoCentric's Connect platform — messaging, voice and video, and a white-label design system that adapts to every organisation.
Read more
Bonsai

CodeLeap is the development team behind Bonsai, a UK wealth app. We build and ship the mobile product across Android and iOS — planning tools, bank connections and premium tiers — releasing new features every sprint.
Read more

See more case studies

The tech

The platforms enterprise integration actually means — the ERP and CRM systems we integrate with, and the shipped work that proves the method.

Salesforce

We integrate with Salesforce, from record sync to the AI features around it — designed from your data flow outward, not a reseller's playbook.
SAP

We work with SAP estates on the integration layer — getting data out of and back into the ERP without disturbing what finance depends on.
Microsoft Dynamics 365

We integrate with Dynamics 365 where Microsoft is the system of record — CRM and ERP integration built around the processes you already run.
NetSuite

We work with NetSuite as the finance backbone it usually is — orders, invoices and stock flowing in without re-keying.
HubSpot

We integrate with HubSpot for the marketing-to-sales handover — one contact record instead of an export schedule.
Pipedrive & Xero

The shipped proof: an events business's Pipedrive, SmartDocs and Xero now run one contract-to-invoice flow we built.
Legacy system APIs

We've integrated clients' own identity and HR systems behind modern apps — wrapping what works is usually cheaper and safer than replacing it.
Monitoring & retries

Every integration we ship is monitored with automatic retries — a vendor's API change becomes our alert, not your missing invoices.
And much more

This is what comes up most often, not a limit. Bring us something that isn't on this list and we'll get up to speed on it — working with something new is the job, not an obstacle.

What our clients are saying

Real reviews from clients we have delivered for, on Clutch and elsewhere.

4.9 via Clutch

The enthusiasm, understanding of our mission, and passion from the first few minutes of the call were the deciding factors in choosing CodeLeap. Within 3 months of our app launching, we had over 1,500 downloads, appeared in leading publications from Forbes, The Metro, Marie Claire, Women's Fitness and many more, and started raising further investment.

Charlie CEO, Becon
They are incredibly diligent in the quality of work they produce, and go above and beyond when it comes to solving issues faced within the project, and to ensure we meet strict project deadlines. You never feel like you are one of many clients, and they ensure they are always there to help with any need you have, no matter how big or small.

Amelia Parmiter Marketing Manager, AWS - Marble
CodeLeap made me feel like my options were limitless in terms of what could be achieved, which was critical to me as we were creating something very unique. I'm glad I chose Codeleap over a large corporation as the personable approach resulted in a smooth and pleasant experience.

James CEO, Bearable
Working with CodeLeap was a very good experience from both a professional and personal point of view. These people know what they are doing and are both efficient and clever and made a good partner. I wouldn't hesitate to recommend CodeLeap.

John CEO, Neurometrics-Diab
CodeLeap adds so much value and goes above and beyond what I expected. CodeLeap's team is very flexible with all the different requests we've put in front of them. They've also been great with the whole business side of things, and being able to forecast for this industry is really helpful. Overall, I'm completely satisfied with their work — they've been incredibly helpful.

Johanne CEO, Cherry
Their flexibility and focus on quality were outstanding.

Mike Fenna CTO, Kite Insights
Marcelo has been wonderful throughout the process and we are very happy.

Amrit Director, Energy Company
Absolutely FANTASTIC. This is very much what I had in mind. We're very pleased with your team, thank you all very much.

Rich Director, Legal Company

See all reviews on Clutch

Recognised by the industry

Independent rankings from Clutch, The Manifest, SME News and the National Digital Awards.

Flexible, transparent pricing

Integration audit & plan

Fixed scope
- Your application estate mapped end to end
- Where data is re-keyed, costed in hours
- API and legacy constraints identified early
- A costed, sequenced integration plan
- Fixed price, no obligation to build
From £4,000
Book a free consultation
Integration build

Plan to production
- ERP, CRM and finance systems connected
- Legacy systems wrapped with modern APIs
- Failures monitored and retried automatically
- Documentation your team can maintain
- All code and IP yours on payment
From £10,000
Book a free consultation
Other development services

Design · Build · Launch
Contact us

Any questions? We're here to answer

Everything you might want to know before starting a project with us.

It's making the applications a business runs on — ERP, CRM, finance, HR — share data automatically instead of through exports, imports and re-keying. That can mean direct API connections, an integration layer, or wrapping a legacy system so modern tools can talk to it. The measure of success is simple: information entered once, used everywhere.
Yes — we work with the major CRM and ERP platforms, Salesforce included, plus the accounting and operations tools around them. We're not a reseller for any of them, so the integration is designed around your data flow, not a vendor's upsell.
Usually it can stay. Legacy system integration means wrapping what works with a modern API so newer tools can use it — cheaper and safer than a rewrite. When a system genuinely is better replaced, we'll show you the numbers for both paths and let you choose.
The integration is monitored, so a breaking change shows up as an alert to us — not as invoices silently not arriving three weeks later. Under ongoing support, typically from £400 per month, we patch API changes as part of keeping the integration healthy.
An integration audit and plan starts from £4,000 — your application estate mapped, the re-keying costed in hours, and a sequenced plan. Builds start from £10,000, fixed-price, with milestone payments.