def _compute_price_unit(self):
    lines_without_price_recomputation = self.filtered(lambda l: True)
    # Only recompute for the remaining lines (none in this case)
    lines_to_recompute = self - lines_without_price_recomputation

    if lines_to_recompute:
        super(SaleOrderLine, lines_to_recompute)._compute_price_unit()

This is working in odoo 17

Hi,
Such a design is added to recompute the price based on the price-list rules configured, as odoo online, i think, you cannot alter it without having custom codes.

But from v18, odoo is going to stop this behavior, once user manually enter some prices, it will remain as it is when changing the Qty.

Thanks

Yeah. have the exact same problem. When you change the quantity on any line in a sales order in Odoo, the price reverts back to the original price saved in the product form.

I never figured out how to fix that (if there is a way to fix it) and if it something that cannot be modified is , to be quite honest, a really really really really really really stupid design mistake to make for such an application.

Hi!

This behavior was changed in Odoo 18, please have a look at the following video (starting from 12:40): https://www.odoo.com/odoo/project/809/tasks/4035579

Once you've upgraded the database to 18, you'll have access to the new feature. Please refer to the following documentation for more information on upgrades : https://www.odoo.com/documentation/18.0/administration/upgrade.html

Hope this helps,