1. Unknown
This state is used once the credit card is created or updated.
2. OK
This state indicates, that the last authorization was successful and the card is absolutely valid.
3. Invalid
This is the situation once a credit card expires and is replaced by a card with a different PAN. Payments cannot be processed but this card can still be updated.
4. Expired
Once a credit card expires, but recurring billing can be still processed through with adjusted expiration (transaction. Adjusted expiration date=T) (Expired credit card is replaced by a new card that has the same PAN but different expiration date, so the credit card still can be used for recurring billing purposes.)
5. Closed
This is final state. It indicates that this card should not be used. System will not try to update cards in this state, otherwise merchant would be charged for repeatedly sending closed cards.
6. Contact cardholder
This means that cardholder is unsubcribed from card updater service. His card cannot be updated.