The documentation portal is undergoing maintenance. During this period, you can't create any new user credentials. If you do, you'll need to recreate the user credential after the maintenance period ends.
The process of testing a data map, extraction map, or personal metadata profile in the PowerExchange Navigator. The test accesses columns in a data source and displays them in tabular format. The results indicate the change data that PowerExchange will retrieve at runtime or the changes that were retrieved.