After you determine the validation requirements, create and run a test case and view test results and reports.
A test case report shows the status of the test case, the overall column matching status, and matching status of each column that the test compares. For unsuccessful tests, the report provides information about missing, unmatched, and extra records. If there are mismatches, use the information in the report to correct the data, and then run the test again. Repeat the process as required until test results are successful.
Note: A data validation test can validate data and identify inconsistencies in data, but it can't identify the source of the inconsistencies.