The chargecode for your application is entered in the Charge Code configuration property for the Folder. It also becomes the default chargecode for your application, and any Reports or WFLs initiated through your application.
The chargecode that you enter on the folder configuration properties is included in your COMS configuration files, and becomes an attribute of the program entities for your application. If you have access to the COMS Utility window, you can manually change the chargecode attributes of your program entities, and when your application is next initiated, your new chargecode becomes the default.