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Bug

A JSON error message "Error 160917: A required parameter is missing from the JSON" is returned when appending a feature with only one attachment to a branch versioned feature service.

ArcGIS Pro
Bug ID Number BUG-000178283
SubmittedJuly 29, 2025
Last ModifiedAugust 11, 2025
Applies toArcGIS Pro
Version found3.3.4
Operating SystemWindows OS
Operating System Version11.0 64 bit
StatusUnder Consideration

Workaround

Connect to the database directly and append the feature instead of appending to the service.

Steps to Reproduce

Bug ID: BUG-000178283

Software:

  • ArcGIS Pro

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