idea Generate Unique IDs as GlobalID when appending a FC without GlobalIDs to one with GlobalIDs in ArcGIS Pro Ideas

Generate Unique IDs as GlobalID when appending a FC without GlobalIDs to one with GlobalIDs

MarkusWall1 — Mon, 17 Nov 2025 07:41:53 GMT

When appending features from a feature class not having a globalID field to one with a globalID field, all the importet features get the same globalID.

It ist impossible to work with this data afterwards, so the features have to be deleted.

At least a warning would be fine, that the origin data has no globalIDs and that they should be generated before appending the features.

Re: Generate Unique IDs as GlobalID when appending a FC without GlobalIDs to one with GlobalIDs

KevinSaavedra — Mon, 17 Nov 2025 16:53:43 GMT

Hello,

In Pro 3.6, I appended a file gdb input feature class with no globalIDs to a target feature class with globalIDs and the appended features were all assigned new globalIDs.

I also verified this is the case when the input feature class is in a file gdb and the target is in a SQL Server eGDB.

Could you please list more detail about your case where the same globalID is used for all appended features?

Re: Generate Unique IDs as GlobalID when appending a FC without GlobalIDs to one with GlobalIDs

MarkusWall1 — Tue, 18 Nov 2025 06:56:42 GMT

Hello,

I was able to reproduce it a few times last week, but it's not reproducible now.

What I figured out is, that when the option "preserver GlobalIDs" is set, the GlobalID of all importet objects is the same, but its {00000000-0000-0000-0000-000000000000}

I found an older screenshot from August, where I documented the problem with the same GlobalID after an import.

BR,

Markus

Origin FColder screenshot of appended dataTarget FC

Re: Generate Unique IDs as GlobalID when appending a FC without GlobalIDs to one with GlobalIDs

KevinSaavedra — Tue, 14 Apr 2026 13:36:34 GMT

This is implemented in Pro 3.7. If the target dataset contains a Global ID field and the input data does not, running Append with the Preserve Global IDs environment set to True will automatically generate new Global ID values for inserted rows.

Re: Generate Unique IDs as GlobalID when appending a FC without GlobalIDs to one with GlobalIDs - Status changed to: In Product Plan

MargaretCrawford — Tue, 14 Apr 2026 14:26:16 GMT