Information about data input or data processing errors (date they occurred, cause of the error, date corrected and resubmitted) should be entered in an error log Errors should be investigated, corrected, and resubmitted on a timely basis (usually with the next batch of transactions) and reedited using the same input validation routine. Periodically, the error log should be reviewed to ensure that all errors have been corrected and then used to prepare an error report that summarizes errors by record type, error type, cause, and disposition.