Base Menu Visibility Restriction

This module adds a new field called Excluded Groups to every menu item in Odoo. Administrators can open a menu's access settings and, next to the existing allowed groups, pick one or more user groups that should NOT see that menu.

When Odoo builds the list of menus a user can see, it now also removes any menu whose Excluded Groups include a group the user belongs to. This happens automatically every time menus are loaded, so the restriction applies immediately without extra configuration.

• Where it appears: the menu access editing screen (the same screen used to set which groups can see a menu), where a new multi-select field for excluded groups is shown.
• Business rule: if a user is in any group listed as excluded for a menu, that menu is hidden from them, even if other settings would normally show it.
• Scope: it affects the ir.ui.menu model and therefore all menus across Odoo.

No new menus, reports, emails or scheduled actions are added. The module only changes how menu visibility is calculated and adds the configuration field.