In this lesson, you learned that you can configure the columns that get profiled and that you can configure the sampling and drilldown options. You learned that you can drill down to see the underlying rows for column values and that you can configure the columns that are included when you view the column values.
You created a custom profile that included the CustomerTier column, ran the profile, and drilled down to the underlying rows for the CustomerTier column in the results.
Use the custom profile object to create an expression rule in lesson 5.