Altinn 3 Correspondence

Altinn 3 Correspondence is a messaging service, enabling the secure exchange of correspondence, such as official letters, notifications, and other documents, between public agencies and individuals or businesses. Service owners with Correspondence services in Altinn II must migrate these services in Altinn 3 prior to June 19th 2026, when Altinn II will be decommissioned.

• About Altinn Correspondence

  Altinn Correspondence is a secure and efficient digital service that enables public sector organizations to send messages to citizens, businesses, and other public entities. Since all organization numbers and personal identification numbers have a inbox in Altinn Arbeidsglate you will always be able to reach the correct recipient. An Altinn 3 Correspondence automatically becomes a dialogue and is made available through Dialogporten in Altinn 3 Arbeidsflate.

• What do you get?

  An overview and description of the key functionalities and features of Altinn Correspondence.

• Getting Started

  You can either use Altinn as a service owner to send messages, or integrate with Altinn as an end-user-system.

• Concepts

  Explanation of concepts related to Altinn 3 Correspondence

• Transition solution

  Transition solution for Altinn Correspondence

• Reference documentation

  Reference documentation for Altinn 3 Correspondence