The problem you may not have had words for
You log into Tripletex to create an invoice. Then you open another system to update your inventory. Then you send an email to the team letting them know the order is ready. And finally, you update a spreadsheet that nobody really remembers the purpose of anymore.
This is daily life for a huge number of Norwegian SMBs — and it's expensive. Not because the software is bad, but because none of it talks to each other.
That's exactly where API integration comes in.
What is an API?
API stands for Application Programming Interface — an interface that allows two programs to exchange information automatically. Think of it as a shared language that two systems use to understand each other.
When you pay with Vipps in an online store, it's an API that lets the store tell Vipps: "The customer wants to pay 499 kr" — and Vipps replies: "Payment received, confirmation number 12345." None of that requires any manual input from you.
The same principle can be applied inside your own business: your accounting system can automatically pull orders from your online store, without anyone having to type in the numbers by hand.
Examples of API integrations Norwegian businesses use
Tripletex and e-commerce
Tripletex is used by thousands of Norwegian businesses. With an API integration, you can:
- Automatically create invoices in Tripletex when an order is placed in your online store
- Sync customer data in both directions
- Pull accounting reports directly into other tools
The result: you never have to manually move order data from your store to your accounting system again.
Fiken and other systems
Fiken is popular among freelancers and smaller businesses. With an API, you can:
- Send invoices automatically based on data from your CRM
- Connect time tracking so that billing happens automatically
- Import bank data for automatic bookkeeping
Stripe and Norwegian payment solutions
If you want to accept digital payments, Stripe is a popular choice with strong API support. Integration with Norwegian systems like BankID and Norwegian banks is also possible through third-party APIs.
What does API integration cost?
It depends on the complexity. Here's a rough breakdown:
Simple integration (two systems talking directly to each other): From 20,000 kr — typically 2–3 weeks of work.
Mid-complexity integration (multiple systems, custom logic): 30,000–60,000 kr — 4–6 weeks.
Complex integration platform (many systems, real-time data, webhooks): 60,000–150,000 kr — 2–4 months.
For context: if an employee spends 30 minutes a day on manual data entry, that's 130 hours a year. At an hourly rate of 500 kr, that's 65,000 kr in lost time — every year. An integration pays for itself quickly.
REST API vs. other types of integration
There are several integration approaches, but REST API is the most common and most flexible for SMBs:
REST API: Simple, web-based communication. Used by most modern systems like Tripletex, Fiken, Stripe, and HubSpot. Easy to build, easy to maintain.
Webhooks: Instead of your system asking "is there anything new?" every minute, the source system sends a message when something happens. More efficient for real-time data.
File-based integration (CSV/XML): The old-school approach — export a file from one system, import it into another. It works, but it's manual and fragile.
Direct database connection: Not recommended. Tight coupling makes it hard to switch systems and can introduce security risks.
For most Norwegian SMBs, REST API with webhooks is the best solution.
Common pitfalls
"We'll do it ourselves"
Many businesses try to build integrations in-house — using Excel macros, Zapier, or custom-written code. The result is often a system that "works most of the time" and that nobody dares to touch.
A solid integration is documented, tested, and built to handle failure scenarios. What happens when Tripletex goes down? What happens to data that didn't get transferred?
No error handling
Arguably the most important aspect of any integration. If something fails, the system needs to know what to do — retry, alert you, temporarily store the data. Without this, you lose data without even knowing it.
No documentation
An integration without documentation is an integration that's impossible to build on. Good documentation isn't a luxury — it's insurance.
How to get started
You don't have to do everything at once. Start narrow:
- Identify the single biggest time sink — where you're manually copying data between systems
- Check whether both systems have an API — most modern systems do
- Reach out to a developer for a brief technical assessment — this typically takes 1–2 hours and gives you a realistic picture
A good integration is built once and runs for years. It's not a cost — it's an investment in letting your business grow without having to hire more people for manual work.
Conclusion
API integration isn't about technology for its own sake. It's about letting your systems do the jobs they were designed to do, without humans acting as expensive middlemen.
Norwegian SMBs that take this step free up time, reduce errors, and build infrastructure that scales. Those who wait keep paying for it — in minutes and hours, every single day.
Curious about which integrations would deliver the most value for your business? Feel free to get in touch for a no-obligation chat.