Reason Code A02: No Valid Authorization

The merchant processed a declined transaction, or the card was expired.

• The transaction was completed after the transaction code and authorization code.
• The transaction amount was over the merchant’s acceptable limit.
• The card had expired, or the cardholder account was closed.

• Request authorization before you process the transaction.
• Once the authorization is rejected, send a second authorization request, or cancel the transaction. Don’t proceed without authorization.  
• Confirm the card’s expiry before completing a transaction. Instead, request an alternative method of payment if the card is expired.