I am using Odoo 17.

I have added a button in the product.template model:

When clicked it triggers the "action_update_prices" method on all subscriptions with the product i have updated the price for so instead of going through all the subscriptions one at a time and updating the price i can just update it from the product itself. 

Everything is working as intended.

BUT. I discovered that if i create an invoice and then updates the price again it sets the price to 0 for ALL products in the sale.order.line. This is the default functionality standard to Odoo.


I don't want this functionality. Instead i want it to ignore if it has invoices and just keep the original functionality, so if i update the sales price on the product it should update the price on the sale.order.line on every subscription having that product

I hope it makes sense and there is a solution to add this feature.