12.7. Scope of Parameters

In this lesson, we'll discuss the scope of default values for parameters in Looker Studio and how to apply them in different levels of hierarchy.

Learning Objectives

  1. Understand the hierarchy of parameter default values in Looker Studio.
  2. Learn how to override parameter default values at different levels: report, page, group, and chart.
  3. Identify the most appropriate level to use for various scenarios.

12_page-0007.jpg

Understanding the Hierarchy

There are various levels in the hierarchy where you can apply default values for parameters, like the different-level filters we discussed. These include:

  1. Default (set during parameter creation)
  2. Report level
  3. Page level
  4. Group level
  5. Chart level

The lower levels in the hierarchy will override the higher levels.

For example, let's say the default value for the parameter percent_increase is 25. When you refresh the report, you may notice it's already 30, meaning the default value has been overwritten.

Overriding Default Values

At the Report Level