Basic Concepts
Altinn 3 Correspondence basic concepts.
Context overview - actors and information flow
The following diagram gives a high level overview of Altinn 3 Correspondence actors and information flow.

Supported messaging patterns
The basic messaging pattern supported by Altinn Correspondence is one-to-one messaging from one sender to one recipient.
Altinn 3 Correspondence also supports batch sending. This means sending the same correspondence to multiple recipients in a single request. When using batch sending, the system creates and stores a separate correspondence for each recipient. This allows correspondence statuses and events to be handled individually for each recipient.
Note: Specifying an IdempotentKey on the correspondences is not supported when using batch sending.
