QlikMapsQlikMapsGeocoding and Custom Polygons Geocoding FAQWhy are my polygons "noisy" or "dirty" after dissolving?

Why are my polygons "noisy" or "dirty" after dissolving?

Simplified vs. Unsimplified

After dissolving polygons for something like Custom Zip-To-Terr Boundaries, you may see some polygons have unexpected lines or dots inside them. This is due to using simplified SHP files. We strongly recommend using unsimplified SHPs when doing any dissolve, so that polygons will resolve properly.