Purchase Order Supplierinfo Update

This module keeps the vendor price list (the supplier information stored on each product) in sync with what you actually ordered. When a purchase order is confirmed, or when a confirmed order's line price or discount is edited, the module writes the new price and discount back to the matching supplier record for that product and vendor.

• It works on purchase orders and their lines. The update happens when the order moves to the 'Purchase Order' or 'Done' state, and also when a line's unit price or discount is changed on an already confirmed order.
• It only updates the supplier record if there is no later purchase order line for the same vendor and product, so older orders do not overwrite newer prices.
• Prices are converted to the supplier's currency and unit of measure before being saved, so the stored vendor price stays correct even if you buy in a different currency or packaging.
• The vendor's discount is also updated to match the discount on the purchase line.

There are no new menus or screens; the change is visible on the product's vendor price list and in the suggested price when creating future purchase orders.