Hello,

When customers add items to the cart in eCommerce, I need the system to show and add the previous customer balance (either it is positive or negative).

For example, a customer has an invoice (100$) and has not paid yet. Then he purchase something from my online store (200$). So when check out, Odoo will only show the $200. I need to show $200 and then the previous $100 and ask him to pay $300