Introduction
Context filters in Tableau help you control which data is used first before other filters. This makes your dashboard faster and lets you create filters that depend on each other.
When you want to filter sales data for a specific year before applying region filters.
When your dashboard needs to show only top customers based on a selected category.
When you want to improve performance by reducing data before applying many filters.
When you want one filter to affect the results of another filter.
When you want to create a filter that other filters depend on.