Can you provide some sample data and an explanation of exactly what you're trying to do?
Scenario Description -
I have custom territories for my sales team - the territories map to certain ZIPs.
I am not able to create territory on the map as ZIPs from a single Geo defined state may lie in multiple territories (My territories have nothing to do with US states).
California, ZIP 94025, Territory 1
California, ZIP 94401, Territory 2
I was able to do the map creation when full states were aggregated into territories. since now territories correspond to ZIPs, I have this issue.