Four-digit year in which the payment card expires.
Format: YYYY.
For Maestro (UK Domestic) and Maestro (International) cards on Barclays and Streamline, this must be a valid value (1900 through 3000) but is not required to be a valid expiration date. In other words, an expiration date that is in the past does not cause CyberSource to reject your request. However, an invalid expiration date might cause the issuer to reject your request.
For encoded account numbers (type=039), if there is no expiration date on the card, use 2021.
Required field.
You can send in 2 digits or 4 digits. If you send in 2 digits, they must be the last 2 digits of the year.
Required if pointOfSaleInformation.entryMode=keyed. However, this field is optional if your account is configured
for relaxed requirements for address data and expiration date. Important It is your responsibility to determine
whether a field is required for the transaction you are requesting.
For PAN-based Google Pay transactions, this field is returned in the API response.