You can explicitly check the quality of your data and fix those issues to improve the value of your data repository.

1. Open the data quality view: Click Visualize > Data Quality.
2. Find relevant issues to fix: The view provides information about the data quality of all assets displayed in the data workbench. The Quality Severity column displays the following symbols: The quality severity can be sorted or filtered to show the most important issues first. To limit results to a specific issue type such as issues about cloud relevance or data security, click the Data Quality Settings button and select a data quality rule group.
   •  = no error
   •  = hint
   •  = warning
   •  = error

3. Correct data issues: Expand the rows showing a warning or error in the Quality Severity column to display the issues. Click a link in the Resolution Hint column to fix an issue.