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Connect Fortnox and Lightspeed POS

Connecting Fortnox and Lightspeed POS for a company that uses both could enable the exchange of sales, inventory, and accounting data between the two platforms. This could support more efficient bookkeeping, reduce manual data entry, and help ensure that financial and operational records remain accurate and up to date across both systems.

You can build this integration on the System2System platform. We design the connection between Fortnox and Lightspeed POS around the way you work — not as an off-the-shelf connector, but to fit your systems.

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Why connect Fortnox and Lightspeed POS?

A company operating both Fortnox and Lightspeed POS could benefit from connecting these systems to allow for data exchange. If such a connection were established, it could help reduce manual data entry, which otherwise increases the risk of errors and consumes valuable staff time. Without integration, information such as sales, inventory, and customer records might need to be entered separately into each platform, leading to discrepancies between systems. This can result in records drifting apart, with inventory levels or financial figures becoming outdated or inconsistent, which could in turn affect reporting accuracy and decision-making. For example, sales processed in Lightspeed POS may not be reflected in Fortnox in real time without a connection, causing delays in accounting or stock updates. Common types of data exchanged between systems of these types include sales transactions, product and inventory details, customer information, and potentially supplier or purchase order data. The exact scope of what could be exchanged depends on the capabilities and data access provided by each system’s API, and would need to be determined for each specific implementation.

How System2System builds an integration

Connectors

We connect to each system through the interface it offers — an API, a database, a file exchange or a webhook — and handle authentication, rate limits and retries.

Mapping

Fields rarely line up one to one. We map and transform the data so both systems receive it in the shape they expect.

Workflow

We define what triggers an exchange, in which direction data flows and which system takes precedence when the two disagree.

Monitoring

Every exchange is logged. Failures are flagged and can be replayed, so nothing disappears without anyone noticing.

What can actually be exchanged?

That depends on what Fortnox and Lightspeed POS make available through their APIs, on the licences and modules in use, and on the version each system runs. Which records are synchronised, in which direction and how often, is something we determine together before any work starts.

We are happy to look at your specific situation and tell you what is feasible — including when the answer is that it is not.

About these systems

Read more about each system and what it can be connected to

Looking to connect these systems?

Talk to us about what your setup needs. No obligation.

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