When an Admin makes changes to a field in Agile Central, the changes should be listed in the Revision History.
A field has been Added or Changed, where can I find who did it and when?
Release: AGCIBM99000-1-Agile Central-IBM CLEARQUEST INTEGRATION-SAAS
The Revision history at either the Project level or the Workspace level, depending on what level the field was created contains the changes. The example below shows that a new field Approver was added. And a value was added to field AdminType for User Stories.
<Please see attached file for image>