Purchase Uninvoiced Amount Force Invoiced Line

This module is a small glue module that connects two other modules: one that adds an uninvoiced amount field to purchase order lines, and one that adds a force invoiced option on purchase order lines.

• On each purchase order line, the uninvoiced amount is recalculated automatically whenever the ordered quantity, received quantity, invoiced quantity, subtotal, force invoiced flag, or invoice status changes.
• If the line is marked as force invoiced, or if its invoice status is already 'invoiced', the uninvoiced amount is set to zero.
• Otherwise, the uninvoiced amount is computed as the remaining quantity (ordered minus invoiced) multiplied by the unit price, never going below zero, and rounded to the line's currency.

This affects the purchase.order.line model. There are no new menus, screens, or reports; the change is visible directly in the purchase order line list and form views where the uninvoiced amount field is displayed. The module ensures that the uninvoiced amount shown to users matches the actual invoicing situation, avoiding confusion when a line is manually forced to be considered fully invoiced.