This document discusses using Amazon Pinpoint and Amazon Cognito for multi-channel user engagement. It presents a scenario of a sports fans mobile app that needs to send push notifications for live scores and set up email digests. The document then provides an overview of Amazon Cognito for user management and authentication and Amazon Pinpoint for user analytics and messaging. It demonstrates implementing the scenario using these services, including setting up Cognito and Pinpoint with Mobile Hub, recording user attributes, creating segments, and setting up push and email campaigns.