How to create Orders to Upsell in Odoo 14?

When delivered quantity comes greater than customer order quantity. If the Customer / Company accepts the remaining quantity then we can increase the sale. System will allow to create invoice for remaining quantity in order to upsell.

• System will provides to Invoice ordered quantities
• When delivered quantity comes greater than invoice quantity, odoo supports the order to upsell
• System will provides to invoice for order to upsell