Implementation Notes

Use the following notes as final implementation reminders when integrating the CVV & PIN Status Management flow.

• Use the card’s publicToken when retrieving CVV or PIN status.
• CVV and PIN status retrieval checks status and remaining attempts only. These flows do not retrieve actual secure values.
• If your implementation needs to display secure card data, use the Secure Card Data flow instead.
• Only perform unblock operations when they are supported and allowed for the card.
• When PIN unblock succeeds, the PIN attempt counter is reset.
• Store request and response references for troubleshooting, audit, and support purposes.