Q: Why would the CV2 result be unknown?

A: The main reasons for the result being unknown are:

1. The CV2 was not submitted with the transaction

2. If the transaction is a cross reference transaction & the CV2 code was not submitted as an override, or was not submitted or unknown for the original transaction being referenced, then that result will carry forward to this transaction

3. If there was a problem contacting the provider, or the provider itself had a problem delivering the results of the CV2 check (least likely reason)