The file confirmation on KeyNavigator is a confirmation of connectivity. Actual file data cannot be validated until the file updates into the reconciliation software during Key’s nightly batch processing. Therefore, it’s possible that the file you sent to Key was invalid, and therefore wasn’t updating properly, causing a large number of positive pay exceptions. To ensure that your file was received correctly, on the next day at 8:00 a.m. ET, you may review file data using the Audit List of Issues.