What set of configurations make up Scheduling Policies and let companies adhere to their business constraints and preferences?

A client's Heroku application is publishing messages to an instance of Apache Kafka on Heroku.
What does a second Heroku application need to do to consume those messages?

The Heroku CLI give you the ability to:

Universal Containers (UC) has a Heroku application that runs in Virginia, in the U.S., that uses Apache Kafka on Heroku. They have deployed a copy of the app in Asia. Now, both apps need a messaging backbone that will support multi-region distribution.
What is the least complex architecture that an Architect should recommend?

A client's Heroku web application displays data that is fetched from a back-end file storage system. The client now wants this data to be viewable, but not editable, from their Salesforce org.
Which recommendation should an Architect make in this scenario?