It is recommended to check every field in the message body according to the specification. Please delete the entire field from the message instead of using NULL or'' values, If you do not need to send the fields that require O:Optional or C:Conditional.
Card Enrollment returned a Message as below: "responseCode":"14","responseMsg":"Invalid card number(no such account)."
If you use Card Enrollment to apply for a new virtual card, only send accountNo in cvmInfo. SCIS will return a new virtual card.