How to add Sales Dashboards of Next-Gen on Sales cloud SUI
Summary: Overview of the Sales Dashboard: Salespeople and sales managers can use the Sales Dashboard to review items that need their immediate attention, including upcoming appointments and tasks. The dashboard can also display tables of information and visualizations from OTBI and from shared saved searches.
Oracle delivers two Sales Dashboards: one for the sales representative and one for the sales manager.
Summary : When customer will try to enable/Add Sales Dashboard of NextGen on Sales UI user will not be able to view it on SUI
NextGen Sales Dashboard: https://docs.oracle.com/en/cloud/saas/sales/23a/fadsi/overview-of-the-sales-dashboard.html#s20080883