Stock production lot expired date

This module makes it faster to enter the dates of a stock lot (serial/lot number) when you track expiry.

In Inventory settings, next to the expiry feature, a new option "Base date to compute expiration dates" lets you pick which date is your starting point: Use date, Expiration date, Alert date or Removal date. The choice is saved as a system setting.

On a lot form, when you change the date you selected as base date, Odoo automatically recalculates the other dates. The calculation uses the time intervals configured on the product (expiration, use, removal and alert times), so the other dates are shifted by the same differences as the product's intervals. For example, if the product says the alert must come some days before expiry, changing the expiration date moves the alert date accordingly.

• The recalculation only happens while editing the form (on change), not on saved records in the background.
• It only applies when the lot has a product and the edited date is the configured base date.
• Dates whose interval is not set on the product are left untouched.

It touches the lot model stock.lot and the Inventory settings screen res.config.settings.