laptop and a wrench

Bug

Changing the letter case of field names and field aliases from upper case to lower case, or vice versa, using arcpy.AlterField_management does not work in ArcMap.

Last Published: April 1, 2020 ArcGIS for Desktop
Bug ID Number BUG-000129330
SubmittedMarch 11, 2020
Last ModifiedFebruary 20, 2025
Applies toArcGIS for Desktop
Version found10.8
Operating SystemWindows OS
Operating System Version10.0
StatusWill Not Be Addressed

Additional Information

ArcGIS Desktop (including ArcGIS Engine and ArcObjects) is in mature support and will be retired March 1, 2026. Mature support means the end of functionality-based patches and hotfixes; therefore, this issue will not be addressed. There are no plans for future releases of ArcGIS Desktop, and it is recommended that you migrate to ArcGIS Pro. See Migrate from ArcMap to ArcGIS Pro for more information. https://www.esri.com/en-us/arcgis/products/arcgis-pro/resources/migrate

Workaround

Apart from the letter case, change the field names as well.

Steps to Reproduce

Bug ID: BUG-000129330

Software:

  • ArcGIS for Desktop

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