How do I find when a Custom Label was created, modified, or who Created or Modified it from an API ?
I have checked Partner WSDL, Metadata API and Tooling API but none of them give out this information. Metadata API provides information about Custom Labels but does not give out the System Fields :
Other standard fields aren't supported, including system fields (such as CreatedById or LastModifiedDate) and autonumber fields.
I have found this Idea (and voted): Expose Last Modified information (date and user) through the Metadata API but it'd be nice if there's something out there already.