PIPELINEGuide
How long does an API integration take? Realistic timeline
A project for API integrations is not a weekend job, but not a six-month project either. What happens in which order, where it typically stalls, and how to shorten the timeline.
API integrations take 2 to 6 weeks in practice. The biggest time factor is almost never the implementation itself, but how quickly content, access, and decisions come from your side.
01 — Timeframe
How long it takes
- Typical duration
- 2 to 6 weeks
- Price
- Individual based on effort
The timeline starts after approval of the quote. Lead time for initial meeting and quote: typically one to two weeks. We provide a fixed price after this initial meeting.
02 — Process
The steps in detail
Check feasibility
Is there a usable interface on both sides? That's the question that needs answering first.
Map fields
Which field corresponds to which, and what happens with missing values.
Build and test
With real data, including the cases that go wrong.
Monitor
The connection reports when it stalls — before anyone notices in daily operations.
03 — Bottlenecks
What typically causes delays
- Content and deliveries. By far the most common cause of delay. Text, images, price lists, access credentials — what's missing blocks progress.
- Decisions. When it's unclear who approves, the project waits. A named contact person with decision-making authority noticeably shortens the timeline.
- Access to third-party systems. Getting access to inventory management, phone systems, or CRM regularly takes longer than the integration itself.
- Endless review rounds. Two correction rounds are normal, five are a sign that the goal wasn't clear at the start.
04 — Scope
What's included
- Review of existing interfaces in both systems before anything is promised
- Mapping of data fields between systems, including edge cases
- Error handling with retry and notification
- Logging of every exchange for traceability
- Monitoring that reports when the connection goes silent
- Documentation in case someone else needs to maintain it later
05 — Questions
Frequently asked questions
Who maintains it later?
You receive code and documentation. We deliberately build with widely used technologies so that switching is possible.
What if our legacy system has no interface?
Then there are usually workarounds: database access, automated file exchange, in exceptional cases surface automation. All are more fragile than a real interface. We'll honestly tell you how stable such a solution will be before you decide.
What does maintenance cost during operation?
As long as none of the connected systems changes fundamentally, ongoing effort is low — monitoring reports itself when something doesn't fit.
What happens during an outage?
The connection remembers what hasn't been transferred yet, tries again, and reports after multiple failed attempts. Data isn't lost, it arrives delayed.
How often is data synchronized?
From immediately to nightly — depending on what's technically necessary. Immediate synchronization isn't always better: for systems with post-processing, a nightly run is often the more stable choice.
Is an interface more secure than a manual export?
Significantly, because human errors during export and import are eliminated and every exchange is logged. A manual export leaves no trace if something was overlooked.
Can multiple systems be connected simultaneously?
Yes, that's actually the more common case — for example, shop, inventory management, and accounting together. Each connection is planned and tested individually, even if everything works together in the end.
06 — Next
Related pages
Next step
We'll look at your starting position.
Tell us what's eating up time today. That becomes an assessment with effort and benefit — and only then an offer.