What is Data Validation?

Data Validation (definition)

Data validation is the process of verifying the accuracy, quality, and integrity of data to ensure it meets the required standards before it is imported, used, or analysed. This process is particularly crucial during data migration, where validation occurs both before and after the transfer to confirm that the data remains accurate, consistent, and error-free. For instance, in QuickBooks Online (QBO), one method of validation might involve running the same financial report in both the source and target systems to confirm that values match. Data validation helps prevent errors, ensures reliable reporting, and supports smooth system integration or migration.