Genesys Cloud enables users to delete contact list filters through the Digital and Telephony menu under Outbound > List Management. Contact list filters can only be deleted if they are not actively used by any running campaigns. The deletion process involves navigating to the Contact List Filters tab, selecting the checkbox corresponding to the filter to be removed, clicking Delete, and confirming the action when prompted. Once deleted, any campaigns previously associated with that filter will no longer reference it. The system automatically handles the removal without requiring manual campaign updates.