Visible does not mean included
A tenant looking at a lift sees one object, so a mark on a door track reads as an unfinished cleaning job. From the building's side those are two different service arrangements with different insurers, different competencies and different approval paths. A cleaner reaching into a door track is working on machinery, and no reasonable scope should ask them to. The competency and the insurance for that work sit somewhere else entirely.
Stating the boundary in plain language removes a recurring source of dissatisfaction. The scope names the car interior, the panels, the mirror and the floor as included, and names sills, tracks, mechanical components and anything behind a panel as excluded and referred elsewhere. Nobody then reads a clean car with a dirty track as a failure by the cleaning contractor, because the document already answered the question.
