topic Re: How do I downgrade objectID from 64bit to 32bit? in ArcGIS Pro Questions

How do I downgrade objectID from 64bit to 32bit?

BrandonGuo — Thu, 22 Feb 2024 03:16:41 GMT

I am trying to share a table with SYNC enabled, but the table's objectID was created with 64bit ObjectID. How do I downgrade the ObjectID?

I tried "export features" , and "import feature class"; neither of them allowed me to change the objectID data type.

There's a geoprocessing tool to upgrade the objectID to 64bit, but no downgrade tool.

Re: How do I downgrade objectID from 64bit to 32bit?

milesleeaus — Thu, 22 Feb 2024 03:48:31 GMT

You could firstly flush the data into PostGres with ArcSDE, and then change the field type to the SmallInt or Integer type instead of BigInt, then export the data again from ArcSDE to your feature class.

Re: How do I downgrade objectID from 64bit to 32bit?

BrandonGuo — Thu, 22 Feb 2024 04:04:07 GMT

Thanks for the help. I don't have the ArcSDE only Pro and Online. I ended up using FME and changed the objectID from int64 to int32, then overwritten the table in the FileGeoDabase.

Re: How do I downgrade objectID from 64bit to 32bit?

JoshuaBixby — Thu, 22 Feb 2024 15:50:43 GMT

In ArcGIS Pro, use Create Feature Class (Data Management)—ArcGIS Pro | Documentation geoprocessing tool instead of the "New > Feature Class" context menu in Catalog. The geoprocessing tool allows you to pick between 32-bit and 64-bit ObjectIDs.

Re: How do I downgrade objectID from 64bit to 32bit?

Miralem_Zeljo — Mon, 20 May 2024 19:14:40 GMT

When will sync on AGO allow 64 bit object ID?

Re: How do I downgrade objectID from 64bit to 32bit?

Bud — Tue, 21 May 2024 10:39:40 GMT

For future reference, here is the link to the idea you posted:

ArcGIS online to allow sync for datasets with 64bit ObjectID.

Re: How do I downgrade objectID from 64bit to 32bit?

robertkalasek — Mon, 18 Nov 2024 14:07:21 GMT

to my mind all of this is not really a "solution". int32 provides the capacity of about 12 bilion oids - so in next to all cases that should be sufficient. and if a dataset comes with int64 oid there should be a straight forward approach out of the box - i.e. a simple arcgis pro function.

Re: How do I downgrade objectID from 64bit to 32bit?

robertkalasek — Mon, 18 Nov 2024 16:12:25 GMT

sorry typo: 2,1 billion

Re: How do I downgrade objectID from 64bit to 32bit?

MinucerMesaros — Wed, 04 Feb 2026 19:10:18 GMT

In QGIS you can export simply to a shapefile from 64 bit OID field type... Hopefully this simple but usefull function will be available also in ArcGIS PRO.

Re: How do I downgrade objectID from 64bit to 32bit?

AyanPalit — Mon, 30 Mar 2026 18:00:36 GMT

Updating this old thread for tracking and community documentation.

Review all the considerations and limitations before using the Migrate Object ID To 64 Bit geoprocessing tool. When an object ID field is migrated to store 64-bit object IDs, the change cannot be undone (in ArcGIS) and the dataset can no longer be used with ArcMap or previous versions of ArcGIS Pro.

As in this post, native SQL tools may be used with caution as it could lead to corruption. Cleaner to recreate the object with 32-bit Object ID. Refer to this KB: https://support.esri.com/en-us/knowledge-base/how-to-downgrade-from-64-bit-to-32-bit-object-id-in-arc-000032106

Re: How do I downgrade objectID from 64bit to 32bit?

DavidSDouglas — Wed, 25 Feb 2026 08:13:09 GMT

I understood that the move to 64-bit object IDs was obligatory when we upgraded our database to Utility Networks version 7 (ArcGIS Enterprise 11.5 and Pro 3.5.5). When will 64-bit object IDs be fully supported?