Cannot get the connection to work?
This is what we have seen happen most often, in the order it usually happens. Our error pages are in Swedish, so their headings are quoted as they appear. If you are still stuck — write to us.
Has the service been bought and activated for the company?
Fortnox checks the licence for the exact company you choose when signing in. If it says the licence is missing, the service has not been bought — or not activated — for that company. Sort it in the Fortnox App Market; reconnecting does not help. How to buy.
Does Fortnox say a system administrator is missing?
The Fortnox sign-in is done by a system administrator of the company's Fortnox — Fortnox requires it for integrations that act for the whole company. Ask a system administrator to do the sign-in step with you, or to give you the role under Inställningar → Användare (Settings → Users) in Fortnox, then start again from the app.
Does nothing happen when you activate in Fortnox?
Fortnox opens activation in a new window. A pop-up blocker stops it without a word. Allow pop-ups for fortnox.se and click again.
Does it say the Fortnox sign-in was not completed?
On our page: Inloggningen hos Fortnox slutfördes inte. The Fortnox sign-in must be finished within ten minutes of starting. Start again from your AI app; the second attempt goes faster.
Does it say the time to add more companies ran out?
On our page: Tiden för att lägga till fler bolag gick ut. The connection is complete only once you go back to your AI app, and that must happen within ten minutes of the last step. Start again from the AI app. Add more companies afterwards with a link from the assistant — it is valid for fifteen minutes.
Can you not find where to add the connector?
ChatGPT and Claude move their menus now and then. Follow our guide for ChatGPT or Claude. In ChatGPT you add the connector on chatgpt.com in a browser — the mobile app cannot do it.
Is there no button to add a custom connector?
On ChatGPT Business and Enterprise only an administrator can add custom connectors, and on Claude Team and Enterprise the organisation's owner (Owner). Ask that person to add it for the organisation — then everyone connects themselves. Claude's free plan allows one custom connector.
Are the tools missing, or something new?
A chat that was already open does not know about the connector — start a new one. In Claude: choose Refresh tools list on the connector's page. AI apps store the tool list when you connect.
Does the warehouse not show?
Fortnox Warehouse was added on 8 October 2026, and a connection made before then lacks the permission. Remove the connector in your AI app, add it again and sign in to Fortnox. Added companies and the choice of write access are done again. The company also needs the Warehouse module in Fortnox.
Does the assistant say the call was blocked or timed out?
In long chats the AI app sometimes never sends the call on to us. Start a new chat and ask again — that almost always does it.
Is the assistant not allowed to change anything?
The company may be set to read-only. Ask the assistant for your connection page and switch writing on there — it applies immediately, without reconnecting.
Does the assistant answer about the wrong company?
The assistant works in one company at a time and always says which. Name the company in your question, or ask it to switch — the switch is shown to you and happens only once you approve it.
Has the connection stopped working?
A connection that has not been used for 30 days lapses by itself. Connect again from your AI app and add the other companies again.
Do you want to disconnect?
Remove the connector in your AI app, or remove a company on your connection page. Access ends immediately. Billing stops only when you cancel in Fortnox.
Still stuck? Write to info@amore.cloud and tell us which AI app you use and what is on the screen. If an error page gave you a reference number (ärendenummer), include it.