How do I activate the Altinn feature for sick leave in Simployer Classic?

Learn how to activate digital sick notes and follow-up plans through Altinn.

Why you need to activate the Altinn feature in Simployer Classic

Simployer is moving to a new solution for receiving digital sick note notifications and submitting follow-up plans. The new solution replaces the existing business certificate.

Altinn initiated this change, not Simployer. Altinn has introduced an improvement that all customers must adopt.

The email about this change is not spam. It was sent to everyone with the System Administrator role in the Simployer portal and to customers with the Sick Leave Follow-up module. Customers without the Sick Leave Follow-up module may therefore also receive the email.

Deadline for activating the Altinn feature in Simployer Classic

Altinn disabled the old solution for submitting follow-up plans on February 16th, 2026. The old solution continued to receive digital sick notes for a short period after this date.

If you have not completed the setup, you cannot submit follow-up plans until you activate the new solution.

How to activate the Altinn feature in Simployer Classic

1. The Managing Director signs in to the Simployer portal at https://altinn.simployer.com/companies/
2. Confirm that the organization number and company number are registered in the organization structure in Simployer Classic
3. Follow the instructions in the portal to connect the company to the new solution for receiving digital sick note notifications and submitting follow-up plans

Important

You must configure both digital sick notes and follow-up plans. Configuring only one of the services is not sufficient.

If you have multiple legal entities, complete the setup separately for each legal entity.

Who can activate the Altinn feature in Simployer Classic?

• The Managing Director must have an active Simployer user account but does not need any specific roles
• A user with the Programming Interface (API) role can also configure follow-up plans

How to confirm the Altinn setup in Simployer Classic

If the follow-up plan still has the status Not configured, go to step 15 in the guide and select Test. The status should then turn green.

Simployer cannot verify the activation on your behalf. You must confirm the setup through the Test step.

Troubleshooting the Altinn activation in Simployer Classic

• You use the BETA version of Altinn and cannot complete the setup: Select Switch to old Altinn in the lower-left corner and continue the process there.
• You receive error messages after following the instructions: The solution previously had an error when it was launched, but the error has been fixed. If the error continues, contact Support.
• Altinn has approved the setup, but Simployer still shows Not configured and displays an error when you select Configure: The page has not yet been updated in Simployer. If you selected Approve in the Altinn window, the setup is complete. You can also sign in using another browser or an incognito window to check whether the error continues.
• You see the message No companies found after following the link: The organization number or company number is usually missing from the organization structure, or your company has not previously been connected to the Altinn integration. Submit a support case through mysupport.simployer.com to establish the connection.
• You do not receive digital sick notes after activation: Open the activation link, go to the test step, and select Test. Wait a few minutes, or until the next full hour, to check whether the sick note arrives.

Frequently asked questions about the Altinn feature in Simployer Classic

How often does Simployer Classic retrieve digital sick notes from Altinn?

Simployer Classic retrieves digital sick notes from Altinn every full hour.

Do digital sick notes go directly to Capitech Flow when we register absence there?

No. Digital sick notes are not sent to Capitech Flow.

Can we use both digital sick notes and follow-up plans if we previously used only one service?

Yes. If you previously had a business certificate and used one of the services, you can now use both services.

Why can’t we submit a follow-up plan after switching to the new Altinn solution?

This is usually because NAV has not registered a sick note for the person.