In a multi-site Umbraco setup, accessing the root node on the frontend is straightforward using the Umbraco context. However, when working in the backoffice—particularly within a notification handler—what is the recommended way to retrieve the root node of the current content without manually traversing up (have checked DocumentQueryService and NavigationQueryService) the content tree?
In a notification handler, I would assume you have access to an IContent. In that case you have an extension method GetAncestorIds() available, and can find the root note Id from there. From that you can retrieve the root IContent using IContentService.