Draft quotations are now treated as expired when their validity date has passed, even if a customer opens them through a portal link. This prevents customers from signing or paying for outdated draft quotations, reducing the risk of accidental payments on offers that are no longer valid.

Previously, draft quotations were never marked as expired. However, draft quotations can be viewed in the portal if you have the link. In order to prevent customers from paying for draft quotations, we now mark draft quotations as expired when applicable.

task-3577657

The subscription cohort view has been improved to use the first contract date as the basis for analysis instead of other date fields. This change provides more accurate cohort reporting by grouping subscriptions based on when they actually started, giving better insights into customer acquisition and retention patterns over time.

taskid: 3635467

Forward-Port-Of: odoo/enterprise#52581