For Uber:
Have access to the "Menu" tool from the Uber Hub.
Have an existing menu on the Uber menu.
Add the following e-mail address in the "Users" tab, as "Manager" (if you have several virtual brands, you must do this for each brand).
For Deliveroo :
Have access to the "Menu Manager" tool from the Deliveroo Hub.
Have an existing menu on the Deliveroo menu.
Have entered your Deliveroo Hub credentials from RusHour (because with "Deliveroo Tablet" credentials, you can't publish a menu from RusHour).