In this video, you learn why and how to use the Experience Cloud ID Service
setCustomerIDs() method to ingest and hash an email address, and to use it as a declared ID. This not only ties together the CRM ID and the email address, but also syncs them to the Adobe Audience Manager UUID, for example, the anonymous device ID. These hashed email addresses can then be sent to People-based Destinations.
For more information, visit the documentation.