The Value header description in the symbology cannot be changed when the data is published as a map service.
Last Published: February 28, 2022ArcGIS for Server
Bug ID Number
May 12, 2015
February 28, 2022
ArcGIS for Server
Operating System Version
Will Not Be Addressed
The development team has considered the issue or request and concluded it will not be addressed. The issue's Additional Information section may contain further explanation.
This issue is logged against a version of the software which is no longer supported, and has not had activity in some time. We apologize for being unable to address this issue within the current product life cycle. If the issue continues to affect work in a supported release, please contact Esri Technical Support.