SYMPTOM:
A user has created a report that has three metrics in Strategy Developer 10.x as shown below:
Data should have at least one row that has all null values and at least one row where only one metric has a value. The rows where all data is null still shows because of the outer joins. If the outer joins are removed the row that has data only on one metric will be removed
ACTION:
In order not to show the rows where all the metric values are nulls, follow the steps below:

