
API and system integration
Your tools, working as one.
System integration services are for companies whose CRM, website, accounting, ERP and online store each hold part of the picture. We connect them through APIs so data moves on its own, decide which system owns each record and plan what happens when a connection fails.
Where integration saves manual work
Website and CRM
An enquiry from the website goes straight into the right CRM pipeline, and you can see where the customer came from. Telegram chats can follow the same route: Telegram CRM integration.
Apps and business systems
An order in your app creates a task for the team and updates the customer’s record.
Data and reporting
Data from different systems comes together in one report, without anyone combining it by hand. When several reports need the same data, we design a shared database: database development and integration.
For companies whose tools don’t talk to each other
Integration helps when data is retyped, duplicated or out of date because every system lives on its own.
Enquiries typed in twice
Enquiries from forms and chats are copied into the CRM by hand. Some get lost, and the source of the lead is unknown.
Sales and accounting
A deal closes in the CRM, but invoices, contracts and payment status sit in the accounting software and are checked by phone.
Online store and warehouse
Stock, orders and delivery statuses differ between the store, the marketplace and the warehouse.
Reporting
Managers wait for reports because the numbers first have to be collected from several systems.
Our own example. Every brief from this website is saved in the admin panel and sent to Telegram and email at the same time. See how it’s built →
How system integration works: decide who owns the data, then connect
A reliable integration starts with rules, not code.
System inventory
We list the tools involved, check their APIs and limits, and find out where each piece of data is created.
Data map
Which system owns each record, which fields move, how they match and what counts as a duplicate.
Failure scenarios
What happens when a system is unavailable, data arrives incomplete or the same record changes in two places.
Build and test
We set up the connection through an API, webhooks or an integration platform and test it on real data, awkward cases included.
Monitoring and handover
Error notifications, a sync log and instructions for your team: where to look and what to do if something stops.
What we measure
Sync errors, duplicates, how fresh the data is in each system and how much manual work is still needed to sort out exceptions.
What we need
from you
A list of the systems to connect, administrator access or test accounts, and API documentation if you have it. Examples of records that are often duplicated or wrong help us more than anything else.
Each system needs an owner on your side who can approve changes to its fields and settings.
We can’t promise an integration that a system’s API doesn’t allow. If a vendor restricts access, we say so at the start and suggest a reliable alternative, such as a scheduled export, instead of a fragile workaround.
Point-to-point, integration platform or middleware: which one fits
There is no single right architecture. The choice depends on how many systems you connect and how often they change.
Direct API integration
One system talks straight to another through its API or webhooks. Quick and clear for two or three connections, such as website to CRM. With every new system the web of links becomes harder to maintain.
Integration platform
Services like Make, Zapier or n8n connect common tools without much code. Good for standard flows and modest volumes; weak where logic is complex or data must be checked carefully.
Middleware layer
A small service of your own sits between the systems, translates the data and keeps a log. It takes longer to build but is easier to extend when you add the fifth or sixth system.
Scheduled exchange
When a system has no usable API, a reliable export and import on schedule is often better than a fragile workaround. We say so openly.
What affects the cost of system integration services
Integrations look simple on a diagram. The effort hides in the details below.
Number of systems and directions
One-way sending of enquiries to a CRM is much simpler than a two-way sync, where changes in either system must be reflected in the other.
Quality of the APIs
Well-documented APIs with test environments save days. Old ERP systems, rate limits and missing fields add work and sometimes need a vendor’s involvement.
Matching and duplicates
How a customer, product or order is recognised across systems with different IDs. The messier the existing data, the more rules are needed.
Volume and timing
Real-time updates for thousands of orders a day need a different design than a nightly sync of a few hundred records.
Monitoring and support
Error alerts, a sync log, retries and someone responsible for updates when a vendor changes its API.
We’ll quote cost and timing in EUR after a short brief.Discuss an integration
Read before you start
Short practical guides on the same subject.
Questions before you start
Which systems can you connect?
Any system with an API, webhooks or a reliable export: CRMs, accounting and ERP systems, online stores, marketplaces, messaging apps, spreadsheets and databases.
Ready-made connector or custom integration?
If a ready-made connector covers your fields and rules, it is usually faster and cheaper. Custom code is needed for complex logic, large volumes or systems without standard connectors.
What if one of the systems changes its API?
Monitoring shows the error straight away. Support after launch is discussed separately, so it is clear who updates the integration.
How is the cost of system integration calculated?
From the number of systems and data flows, the state of their APIs, the matching rules, data volume and the monitoring you need. We quote in EUR after reviewing the systems involved.
Can we start with one connection?
Yes, and we recommend it. Usually we start with the flow that causes the most manual work (often website to CRM) and add the rest once it runs smoothly.
Do you integrate CRM and ERP systems?
Yes, including links between a CRM, an ERP or accounting system and an online store. We start by agreeing which system is the source of truth for customers, products, prices and orders, because most integration problems come from two systems both believing they own the same data.
- Since 2006
- Written scope before work starts
- One contact person
- Reply within 24 hours
Which systems should share data?
List the systems, the data that moves between them and where it is copied by hand. We’ll reply with questions and a suggested first step.
The first conversation is free, with no obligation.

