When creating a dashboard it is important to understand how dashboard global filters override filters that you have saved on your Looks.
When applying filters to Looks in the Explore Section, they will be overridden by global dashboard filters as long as they are on the EXACT SAME field.
In this example I have applied a filter to Orders Created Date for the past 30 days in the Explore Section.
In this first dashboard example, we will apply a listener for the dashboard element on Orders Created Date.
In this case you can see that applying the SAME filter has overridden the previous “Orders Created Date in the past 30 days” filter and is now scoped to view the “Orders Created Date in the past 120 days.” The Orders Count has returned “4,332”, which is the count for the past 120 days.
If instead we globally filtered on Orders Created Month, this would not override the Look filter of “Orders Created Date in the past 30 days.”
In this example you can see that even though I have applied a global filter on “Orders Created Month for the past 120 days.” This filter was limited by the “Orders Created Date in the past 30 days” that is filtering on the Look itself. This can be seen because the number of Orders Count returns “1,024” is the count for the last 30 days. Selecting the same filter field become especially important when working with dimension groups as in this example. Using the same timeframe become a key to properly filtering elements that are added to a dashboard.