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Bug

Calculation attribute rules applied to date fields return a dictionary return 12/30/1899 instead of null values when features are updated.

Last Published: May 7, 2021 ArcGIS Pro
Bug ID Number BUG-000139278
SubmittedApril 22, 2021
Last ModifiedJuly 4, 2025
Applies toArcGIS Pro
Version found2.7.2
Operating SystemWindows OS
Operating System Version10.0 64 Bit
Version FixedPro 2.8
StatusFixed

Workaround

Do not return a dictionary. Use the following rule:

return $feature.EFFECTIVE_END_DATE

Steps to Reproduce

Bug ID: BUG-000139278

Software:

  • ArcGIS Pro

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