Payment Sub Status.
To further break down the payment status into more specific states.
1000 - Initiated
1001 - Pending Customer Action
2000 - Processing
2001 - Customer Additional Information Pending
2002 - Customer Signature Pending
2003 - Inspection In Progress
2004 - Terminal Password Required
2005 - Payment Channel Processing
3000 - Completed
4000 - Preauthorised
5000 - Scheduled
6000 - Cancelled
7000 - Expired
8000 - Error