Response Code

Transactions are valid for 30mins. Any response you get after 30 mins should be considered the final response.
However, customers can retry the same transaction till it expires, so response codes can change till the transaction is successful, fails, or it expires.

Response Code	Response Description
General Error	Transaction has failed. You may start a new charge.
PENDING	Transaction is being processed.
OTP_VALIDATION	OTP is required from the customer to complete the transaction.
VBV_VALIDATION	3DS authentication is required from the customer to complete the transaction.
FAILED	Transaction failed. No remedy.
SUCCESSFUL	Transaction is successful. Give value after checking to see that all is in order