Collection Manager can manage WorldCat holdings set by other services
Collection Manager is OCLC's recommended method for setting holdings on e-resources because it allows it to represent your subscription access as it changes dynamically over time. The collection Manager will set holdings on the override OCLC number (OCN) listed in the collection.
Collection Manager can take over WorldCat holdings set by another process. If at any point you disable WorldCat holdings within the collection or a title falls out of your collection, Collection Manager will remove the WorldCat holding.
When WorldCat holdings are updated due to an OCLC number change in a global knowledge base collection, OCLC will automatically move local data (Local Bibliographic Data/Local Holding Records) to the new record in WorldCat.
Timing for setting holdings in WorldCat
After you select a knowledge base collection, it takes 24-48 hours to set holdings on titles in WorldCat.