Bug
Appending features from one feature class from a File Geodatabase (FGDB) to another fails in ArcGIS Pro if Preserve Global IDs is selected, because the Global ID field does not have a unique index.
| Bug ID Number | BUG-000176431 |
|---|---|
| Submitted | May 14, 2025 |
| Last Modified | July 22, 2025 |
| Applies to | ArcGIS Pro |
| Version found | N/A |
| Operating System | Windows OS |
| Operating System Version | 11.0 64 bit |
| Status | Known Limit |
Additional Information
This is a known limitation. GlobalIDs that are indexed and unique are not supported by the file geodatabase workspace. See Add Attribute Index documentation for more information. In order to maintain data integrity for some workflows that utilize Global IDs (for example, in enterprise geodatabases), the Append tool requires that target feature classes have Global IDs that are indexed and unique.Workaround
For file geodatabases, use the Merge or Export Features tool, which can maintain Global IDs without the indexed and unique restriction of the Append tool.
Steps to Reproduce
Bug ID: BUG-000176431
Software:
- ArcGIS Pro
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