Concurrent job to close work orders, Close Discreet Job parameter

Hi

I am in the process of setting up the Close Discreet Jobs (in WIP) in order to automatically close completed work orders on a scheduled basis.

On the parameters page for this job the , it asks for a Class Type. Our class types for EAM WIP accounts on work orders is Maintenance but the value Maintenance is not in the picklist in the parameter field. According to Oracle documentation, the value Maintenance should be there.

Can anyone explain why the Class Type Maintenance is not in the list of values and how can we get it there.

Thanks - Your help is much appreciated.