...
6. Start the WSO2 API Manager again and log in to the API Publisher (http://localhost:9763/publisher) using username/password as provider1/provider1. Similarly, you should be able to log in to the API Store (https://localhost:9443/store) using username/password as subscriber1/subscriber1.
This basic setup needs to be performed only once for a single API Manager installation. If you want to try multiple samples on the same installation, performing the above procedure once is sufficient.