Available with Business Analyst license.
The ArcGIS Business Analyst extension in ArcGIS Pro includes a territory management extension, Territory Design, that provides geoprocessing tools and ribbon tools for creating, automatically balancing, and maintaining territories.
Note:
This topic is specific to Territory Design in ArcGIS Business Analyst for ArcGIS Pro. If you are interested in Build Balanced Zones documentation, see the Spatial Statistics extension documentation.