In ArcGIS for Desktop 10.2.x, merge rules in the Spatial Join geoprocessing tool are not honored when using the match type HAVE_THEIR_CENTER_IN.
Last Published: August 24, 2015ArcGIS for Desktop
Bug ID Number
October 28, 2014
March 30, 2022
ArcGIS for Desktop
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
As deisgned. Polygon/Multipoint geometry center is its centroid while lines uses midpoint.