Siebel Object Interfaces Reference > Programming > Variable Scoping for Siebel Script Variables >
The global variables exist at the highest level. You must declare these variables in every module that needs to access their values. Use the Global statement to declare these variables. Avoid using global variables to store Siebel objects such as BusComp and BusObject. If you need to store Siebel objects such as BusComp and BusObject, always set these variables to Nothing whenever the objects are no longer required, or at least in the Application_Close event. Failure to do so may cause memory problems because the objects being referenced cannot be freed from memory while they are still being referenced. If you must create a global variable for a business component, make sure there is a global variable for the business object. Otherwise, the business component is out of scope.
The following example is in Siebel eScript:
TheApplication().gVar = "some value";