Unable to Customize Leads By Source Report under Report Section on Leads Tab
|Knowledge Article Number||000194171|
|Description||When a report is generated by clicking the "Leads By Source" link found in Reports section on Leads Home Tab, the report generated is not customizable. This is working as designed|
|Resolution||The workaround is to create a custom report on Leads Object with the required filter.
Note: The "Lead Status" report also will not have Customize button and the workaround is to create a customer report on Leads object as mentioned above