| Description |
| Key Sub Class |
| Type : String |
| Definition |
| When there may be multiple instances of the object indicated by KeySubClassType, KeySubClass is used as a "path" to indicate which instance. The particulars of this "path" must be agreed to by trading partners. KeySubClass can only exist if KeySubClassType is specified. It has no meaning on its own. |
| Parents |
| KeyDef |