If you have a shared menu across multiple store locations, you can update a single menu and this will reflect across all stores. You can only make these changes if you have Admin or Editor access for all stores. If you do not have this access, you will face an error.
If you require access to more store locations, please have your administrator reach out to our Partner Support team by submitting a request via the Partner Support Form to request access on your behalf. To find the Support Form, navigate to the Support tab located on the left of the Partner Portal homepage (partner.ritual.co/support).