About this task
Use this procedure to copy Custom Attribute data to the System Attribute - System AgentId. You must do this task only when you have performance issues with any single Custom attribute using the webservice Get Contact Batch from Contact List.
Note:
To avoid performance issues, you must stop all POM services before you run this script. This script is a one-time activity for migration of existing Custom attribute to System attribute. Any subsequent changes in custom attribute does not automatically reflect in System attribute.