Note: If you use batch processing and do not want to take actions immediately by mistake, you can set an option to receive a warning/confirmation message before the client carries out any immediate online action (go to Tools > Options > General).
As a result of expanding the ISBN to the new 13-digit format, when you take an action on a record that contains an ISBN in only one format, 10-digit or 13-digit, Connexion automatically adds the other format. ISBNs are stored in field 020.
To have the 10- or 13-digit number, whichever is not in the record, generated automatically for exported records, you must take a final action before you export; otherwise, the export retains only ISBNs already in the records.
See Technical Bulletin 253: ISBN and OCLC Number Changes for more information.