Which consideration should an associate keep in mind regarding the Marketing Cloud Engagement All Contacts...

In Salesforce Marketing Cloud Engagement, "All Contacts" and "All Subscribers" serve different but interconnected purposes. "All Contacts" encompasses every individual stored within the Marketing Cloud, regardless of their channel engagement (e.g., email, SMS). Once a contact is engaged via email, they are automatically included in the "All Subscribers" list, which is specifically for email channel communications.

This inclusion ensures that email engagement, preferences, and history are tracked and managed centrally, allowing for effective segmentation, targeting, and compliance management. It's crucial for marketing associates to understand this relationship to maintain data hygiene and ensure accurate targeting and reporting.