What should be included in the API request to access datasets for unified identity?

To access datasets for unified identity in Adobe Experience Platform, including the authorization header in the API request is crucial as it ensures that the request is authenticated and authorized. The authorization header typically contains a token that verifies the identity of the requester and grants the necessary permissions to access the requested resources.

In the context of an API, this header serves as a security measure, protecting sensitive data and ensuring that only authorized users can interact with the platform's datasets. Without proper authorization, the API will not respond, effectively preventing unauthorized access to potentially critical information.

While other options such as JSON payload, Connection ID, and source type parameter may be relevant in specific scenarios, they are not explicit requirements for accessing datasets specifically related to unified identity. The authorization header is the foundational element in securing API interactions.