POIs at wrong location and incorrect routing of fire department vehicles

I’m currently setting up the dispatch center for Landau. However, it’s placing the POIs in the wrong location. Especially the fire station buildings are entered with the correct address, but they’re being placed at the wrong location on the map. As a result, the system then routes the wrong vehicles… how can I solve this problem easily? Do I need to move the marker on the map for every POI?

Yes. Or you can use coordinates.