Creating a ksqlDB Application
While still in Confluent User interface, click on ksqlDB on the left bottom of the panel. On the next page, Click on Create application myself
On the next page, Select Global Access for access control and click continue.
Provide a name for the application, say aws_app, leave the Number of streaming units as 4, which is default and click Launch Application
You will notice that the application is in Provisioning state and it might take few minutes for it to be ready.
Meanwhile lets complete other steps.