If any of the selected functional tests for this load scenario includes data templates, then you will need to select the associated data sets before you can run your load test. To do so, select the load test of interest by clicking on the checkbox to the left of load test name and click Edit, then click on Test Case and Data Set Selection.
You will see the same screen where you selected the test case. Select each of the automated functional tests and choose the data sets related to each of them and click on Save.
Tip
You can select and delete data sets in batches and you can also select multiple data sets and save them together.
Tip