For merged records, when do I get an update record and when do I get new and delete records?

Applies to
Resolution

 There are two different processes for handling merged records, one for KB titles and one for WorldCat updates.

This means that if the library is receiving update records with the old OCN in 019 and 035, then those records are being delivered due to WorldCat Update record merges. If they receive a new and a delete record, it is because a KB data update changed the OCN to a new preferred OCN that was previously unselected.  

Additional information

Criteria for new, update, delete, and merged records

Page ID
37217