The Exclude option is available for one sales opportunity. This button can be used if you sell several items to a customer (example a boat + a trailer + an engine) but you don't want some of them to be calculated in your statistics (trailer + engine). It can also be used for a Wholesale, you want to create a customer's file, create a history, create a card, book a product but you don't want this sale to appear in any of your tables, so now it's possible.
* Only the SALES MANAGER can see this button, otherwise the button will not be visible *
SALES MANAGER
Sales
If you click the exclude button by mistake, you can make it available again by clicking the box.