How long does a CRM integration take?

A simple two-system sync takes 1-2 weeks. Complex multi-system integrations with data migration and cleanup take 3-6 weeks. We always start with the most critical connection first so you see value early.

What if one of our systems does not have an API?

Most modern business tools have APIs. For older systems without APIs, we build custom connectors using database connections, file exports, or screen automation. We always find a way.

Which systems can you integrate?

Virtually anything with an API: HubSpot, Salesforce, Exact Online, Xero, Mailchimp, Slack, Google Workspace, Microsoft 365, Shopify, WooCommerce, and hundreds more. If it exists, we can probably connect it.

What happens if a sync fails?

We build retry logic and error handling into every integration. Failed syncs are logged, retried automatically, and if they keep failing, you (or we, on a managed plan) get an alert. No data gets lost.

What does a CRM integration cost?

A basic two-system sync starts from EUR 1,495. Multi-system integrations with data migration, cleanup and monitoring typically range from EUR 2,950 to EUR 8,000. Complex enterprise integrations are quoted as Custom. Always fixed price.

CRM & Integrations

All your systems seamlessly connected

From CRM synchronization to API connections and data migrations. No double entry, always current data.

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Your systems don't talk to each other

Businesses work with dozens of separate systems that do not communicate with each other. Data is entered twice, becomes outdated, and nobody has a complete customer view.

Double entry

The same data is manually entered into multiple systems, costing time and causing errors.

Systems not synchronized

CRM, accounting, email and project tools contain different versions of the same data.

Data inconsistency

Customer data is correct in one system but not in another, leading to wrong decisions.

Your CRM says the customer is in "prospect" stage. Your accounting system shows they have already paid two invoices. Your project tool has them marked as "active." And your email marketing platform? It just sent them a "become a customer" campaign. This is what happens when your systems do not talk to each other. Your team wastes time copying data between tools, and your customers notice the inconsistency.

We connect your systems so data flows automatically. When a deal closes in your CRM, the accounting system creates the invoice. When a payment comes in, the CRM updates the status. When a project starts, the customer gets an onboarding email. No manual copying. No conflicting data. No "let me check in the other system." Everything stays in sync, in real-time.

We work with APIs, webhooks, and integration platforms to build connections that are reliable and maintainable. We do not just wire two systems together and hope for the best. We build proper error handling, data validation, and monitoring so you know when something needs attention. And because you own everything we build, you are never locked in.

Real-world example

Mastone - Real estate system integrations

Context

Mastone manages a growing real estate portfolio and works with multiple systems for property management, the WWS points system, tenant communication and financial administration.

Challenge

Property data was scattered across four different systems. When something changed in one system, a team member had to manually update the other three. WWS point calculations were done in Excel and then retyped. The result: inconsistent data, delays in rent calculations and errors that were only discovered months later.

Our approach

We built a central integration platform via Make that syncs all systems in real-time. Property data is entered in one place and automatically pushed to the others. The WWS points system is directly connected to the property database, so point calculations are automatically updated with every change.

Results

Manual data entry reduced from 12 hours to less than 1 hour per week

WWS point calculations that previously took 20 minutes per property now update in seconds

Zero data inconsistencies between systems since go-live, compared to an average of 15 per month before

Read the full case study

We connect your tools

No forced migrations. We build on the systems you already use.

What we automate

System Synchronization

Your CRM, accounting and other tools are synchronized in real-time so data is correct everywhere.

System A updateAutomatic syncSystem B current

Data Migration

Safe and complete migration of data between systems, including cleanup and deduplication.

Old systemTransform + cleanupNew system

Real-time Sync

Changes in one system are immediately applied to all connected systems, without delay.

Change detectionValidationApply to all systems

API Connections

Custom connections between systems that do not offer standard integration.

System without connectionCustom APIFully integrated

How it works

Our proven process from intake to go-live, tailored to your situation.

01Analysis & Strategy

02Build & Integration

03Testing & Launch

01Analysis & Strategy

02Build & Integration

03Testing & Launch

Built for results, fully yours

Fixed price, 100% code ownership, no lock-in. Runs independently after delivery.

⏱⏱⏱⏱⏱⏱

Time saved

5-15 hrs/week

Less manual work through automatic data synchronisation

%%%%%%

Error reduction

Up to 95%

Consistent data without human entry errors or outdated information

%%%%%%

Data consistency

Typically 99%+

All systems contain the same, current data

Fully working system integrations on your own platforms

Data validation and error handling for every connection

Monitoring with alerts for errors or interruptions

Technical documentation and manual

Fixed price, no surprises afterwards

30 days of monitoring and support after launch

100% ownership of all source code and configurations

What our clients say

Contract processing that cost our team 15 hours a week now runs fully automated. Live within 3 weeks, including integration with our case management system.

Joost van den Bogart

Partner · BBS Advocaten

The marketing automation reduced our lead follow-up time from 48 hours to 5 minutes. Conversion rate increased by 40%.

Femke van der Berg

Marketing Manager · Schippers Verzekeringen

Invoice processing that used to take half a day is now a matter of minutes. And the best part: the system is ours, no monthly licence fees.

Erik Vermeulen

CEO · Vermeulen & Partners Accountancy

The speed at which Managium responds is exceptional. Answer within a day, working prototype within a week. We are not used to that from IT providers.

Annemarie Visser

Operations Lead · CarePlan Thuiszorg

Contract processing that cost our team 15 hours a week now runs fully automated. Live within 3 weeks, including integration with our case management system.

Joost van den Bogart

Partner · BBS Advocaten

The marketing automation reduced our lead follow-up time from 48 hours to 5 minutes. Conversion rate increased by 40%.

Femke van der Berg

Marketing Manager · Schippers Verzekeringen

Invoice processing that used to take half a day is now a matter of minutes. And the best part: the system is ours, no monthly licence fees.

Erik Vermeulen

CEO · Vermeulen & Partners Accountancy

The speed at which Managium responds is exceptional. Answer within a day, working prototype within a week. We are not used to that from IT providers.

Annemarie Visser

Operations Lead · CarePlan Thuiszorg

Finally a partner that delivers what they promise. Fixed price, no surprises, and we own all the code. Exactly how it should be.

Philippe van der Mark

Founder · Aperta Estate Management

We had bad experiences with another agency that locked us into their platform. At Managium we received all source code and documentation. Refreshingly honest.

Helmer de Witte

Owner · Castle of Blackwater

Order processing, inventory sync and customer emails fully automated. Live within 2 weeks. We now save 20 hours per week of manual work.

Nadia El Amrani

E-commerce Manager · StyleDutch

Our quote calculations took 45 minutes per client. Now the system generates a complete proposal in 2 minutes. Sales team is over the moon.

Joost ter Haar

Commercial Director · InsureFirst

Finally a partner that delivers what they promise. Fixed price, no surprises, and we own all the code. Exactly how it should be.

Philippe van der Mark

Founder · Aperta Estate Management

We had bad experiences with another agency that locked us into their platform. At Managium we received all source code and documentation. Refreshingly honest.

Helmer de Witte

Owner · Castle of Blackwater

Order processing, inventory sync and customer emails fully automated. Live within 2 weeks. We now save 20 hours per week of manual work.

Nadia El Amrani

E-commerce Manager · StyleDutch

Our quote calculations took 45 minutes per client. Now the system generates a complete proposal in 2 minutes. Sales team is over the moon.

Joost ter Haar

Commercial Director · InsureFirst

All property management processes we handled manually are now automated. ROI was recovered within 6 weeks.

Matthieu Wiggers

Founder · Aperta Estate Management

Patient communication and appointment reminders now run automatically. No-shows dropped by 35% and my assistants finally have time for the patient.

Sandra Mol

Practice Manager · Huisartsenpraktijk De Linde

No-cure no-pay gave us the confidence to take the leap. The CRM system they built works better than solutions we previously paid tens of thousands for.

Berend van Buul

Partner · BBS Advocaten

From intake to contract generation, everything automated. What surprised me most: the solution was operational after just 10 days. No months of waiting.

Marieke de Boer

HR Director · FlexForce Uitzendbureau

All property management processes we handled manually are now automated. ROI was recovered within 6 weeks.

Matthieu Wiggers

Founder · Aperta Estate Management

Patient communication and appointment reminders now run automatically. No-shows dropped by 35% and my assistants finally have time for the patient.

Sandra Mol

Practice Manager · Huisartsenpraktijk De Linde

No-cure no-pay gave us the confidence to take the leap. The CRM system they built works better than solutions we previously paid tens of thousands for.

Berend van Buul

Partner · BBS Advocaten

From intake to contract generation, everything automated. What surprised me most: the solution was operational after just 10 days. No months of waiting.

Marieke de Boer

HR Director · FlexForce Uitzendbureau