If you don’t want to grant a staff member the VIEW permission to see all customers, you can instead assign them admin access for specific customer(s).
Go to the customer profile from the admin area and click on the Customer Admins tab.
Click on the assign admin button and choose the member/s you want to be assigned as admins to this specific customer.
Save the changes.
Members you’ve assigned can now view this customer and access the Customer menu item even if they do not have the “Customers: View” permission.