I have a problem with the function 'dissolve'. It doesn't aggregate neighboring polygons. How can I solve this problem?

Question

#dissolve

DanPatterson_Retired · Accepted Answer

The tool.... Dissolve—Help | ArcGIS Desktop

and how it works How Dissolve (Data Management) works—Help | ArcGIS Desktop

if seemingly adjacent features with the same attributes don't dissolve, the polygons may not share a common boundary afterall.  Run a Check Geometry