Hi, welcome to osm.
I noticed the first couple of edits and feel you need a bit of help to do it correctly so that other editors don’t have to follow behind you to fix the building shapes.
You are expected to edit/shift the building nodes to reflect the exact shape of the building. The microsoft building footprints are rubbish and only indicate there may be a building shape here - you then need to fix the shape presented to you before upload and you need to zoom in close to see the shape of the building. Thanks.