RB A20 - Settlement date not valid MMDD

Settlement Date is a four-digit field indicating the settlement date returned in the authorization response. The date format is MMDD, where the entry must be numeric and valid. The system validates that the settlement date corresponds to the following format:

MM = month must be 2-digits, 01-12.
DD = day must be 2-digits, 01-31.
Leap year = a valid calendar day 0229 for MMDD is acceptable.

Possible Cause	Solution
Unknown	The merchant should retain the batch and escalate the issue to research.