Is Patron History changed or modified when updating with an import file?

If a patron’s information is updated with an import file, all of their historical information will remain on the record as-is. Historical data is only removed from a patron record if the individual patron is completely removed from the system.

This means that if you’re recycling barcode numbers, you’ll need to permanently remove the record of the patron who was previously assigned the barcode before you assign that barcode to another patron record.