Oracle Customer Hub (UCM) Master Data Management Reference > Configuring Source Data History and Cross-Reference Functionality > Administering Source Data and Cross-Reference Functionality for Oracle Customer Hub (UCM) >

About Cross-Referencing Parent and Child Records with External Systems

Cross-referencing customer data allows organizations to store the customer identification data from external systems within Oracle Customer Hub (UCM). This cross-reference permits a one-to-many mapping of customer records across multiple systems throughout the organization. In other words, one record in Oracle Customer Hub (UCM) can map to one or more records in each registered application in Oracle Customer Hub (UCM).

When external systems send a request message to the Siebel Server with a request to insert a party record or a request to update a party record, the reference records are entered into Oracle Customer Hub (UCM). The Unique Customer Identification number from external systems is embedded within the <Id> tag of the request message.

Cross-referencing is supported for parent records (account, contact, and household party objects, as well as financial accounts) and child records (account-address, account-financial accounts, contact-address, contact-financial accounts, contact-emails, contact-phones, contact-names, contact-social profiles, and contact-social profile attributes). The SOAP and Batch processes automatically cross-reference parent records, and when the System Preference Enable Child Cross Referencing is enabled, the processes also automatically cross-reference child records. For information on this task, see Cross-Referencing Parent Records with External Systems. For information on cross referencing child records, see Cross-Referencing Child Records with External Systems.