Workflow for data sync collections
Introduction
Data synchronization is an automated process that compares records from your local catalog against records in WorldCat and manages holdings on those matching records. These holdings may be at the institution-level, such as your OCLC symbol, or at the local-level, such as local holdings records (LHRs). This process also facilitates adding new records to WorldCat.
The learning paths below provide an overview of the data sync collection process for each type of collection, from collection creation to report retrieval.

Workflows for creating data sync collections
Note: If you have questions while creating your data sync collection, please contact OCLC Support.
Bibliographic
Delete local holdings records
Delete WorldCat holdings
Local holdings records
Non-MARC numeric search key
Non-MARC patterned data (bibliographic or local holdings records)
Create data sync collection for a Reclamation
Note: There is a fee associated with a reclamation.
If you are new to data sync collections, or if it has been a while since your holdings have been consistently maintained, we recommend starting with a Reclamation and then continuing with an Ongoing collection to ensure your holdings remain up to date.
