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Bug

The ArcGIS Pro Append tool fails to run and the error message "WARNING 000595" is returned when a CSV file is the input dataset and a hosted feature layer is the target dataset.

ArcGIS Pro
Bug ID Number BUG-000178272
SubmittedJuly 29, 2025
Last ModifiedNovember 14, 2025
Applies toArcGIS Pro
Version found3.5.2
Operating SystemWindows OS
Operating System Version11.0 64 bit
Version Fixed3.7
StatusFixed

Additional Information

This issue is addressed in ArcGIS Pro 3.7.

Workaround

  • Use a file geodatabase feature class.
  • Use a different table format, such as Excel or a file geodatabase table.
  • Run the tool with the 'Optimize performance for feature services' parameter unchecked.

Steps to Reproduce

Bug ID: BUG-000178272

Software:

  • ArcGIS Pro

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