How to hide data sources from the Diagnostic Dashboard
An administrator can choose which data sources will be displayed in the Diagnostic Dashboard's charts: "Number of Unique Customers Identified Across x Sources" and "Number of Customers Identified Per Source".
This feature is useful with data sources like "Profile Stitching", "Mixed Data Sources" that are important to distinguish for analysts (therefore visible under the Sources & Destination tab) but not always important to view on the Diagnostic Dashboard as a separate data source.
It is possible to set in the Administration tab/ Sources & Destinations tab in the column "Show in Diagnostic Dashboard".
Changes will be seen after the closest cache refresh. In order to see the changes as soon as possible, an administrator should refresh cache manually in the Administration tab/ Settings tab.