These forums are specific to the Waze mobile app. Post here if you experienced a problem while using the app, have a question about the app functionality or a feature such as navigation or search.
You can tap-hold on the map any time and save a favorite and that doesn't require an address. Not sure that's what you mean as you didn't provide much detail in terms of what you are doing/tapping to try and save the favorite. There's many different ways to save a favorite.
Re: How can I save a location I didn't enter address for?