Geocode Precision
GeocodeAddressWorld automatically provides the best geocode possible based on the data you provide on input. If you provide a city and valid postal code, you will receive a postal code centroid. If you provide a city and an invalid postal code, or a city and no postal code, GeocodeAddressWorld will return the geographic centroid of the city.
See Geographic Geocoding and Postal Geocoding.
From Management Console, you can select Geographic or Postal geocoding. You can also select Best Match. In both geographic and postal geocoding are possible, the Best Match selection will return a close match geographic candidate if the geographic result is to a city level or better (that is, a G3 or G4 result code). If the geographic result is less accurate than a city level (that is, a G1 or G2 result code), then Best Match may return a postal (Z1 result). If a postal result is not available, then the best available geographic candidate is returned.
See Geographic Geocoding Result Codes and Postal Geocoding Result Codes.