It should not be common, but through custo or in debug mode, one can create a menu without an URL since it's not required on the model. Through regular flows, it won't be possible since our UI won't let you go through when creating a menu if you don't set a URL. Followup of https://github.com/odoo/odoo/commit/948235079f002794f9837d3cf91e2d20e3254e20 X-original-commit: f2ac2ab72a190375c8116a11109191c0b7b970dc Part-of: odoo/odoo#160588