For the moment we cannot groupby an inherited field (which is therefore related) in a graph view, so it is counted as being non-stored. Because in the `_normalize` function we do not process fields that are not stored, whereas like here https://github.com/odoo/odoo/blob/d679cd0d8ba9a2420e81a42a698763e9be2327e1/addons/web/static/src/legacy/js /control_panel/groupby_menu.js#L45-L49. Typically when a field has store=False but sortable=True it is inherited from a stored field, so it can be sortable So we have to use `sortable` instead of `sort` to make it consistent. opw-2733133 closes odoo/odoo#84612 X-original-commit: ce2a538e2988aef572171f783891cd6ee644ad14 Related: odoo/enterprise#24351 Signed-off-by: Achraf <abz@odoo.com>