How To: Add a field to an ArcGIS Online hosted feature service


The instructions provided describe how to add attribute fields to an existing ArcGIS Online hosted feature service.



  1. Sign in to ArcGIS Online.
  2. Open an existing feature service or web map in the ArcGIS Online map viewer.
  3. Under a feature layer in the Contents pane, click the Show Table icon to open its attribute table.
  • Once the attribute table displays, select Add Field from the Table Options drop-down menu.


    Only the owner of a hosted feature layer or an administrator of the organization is able to make changes to the attribute schema. 

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