What feature allows real-time visibility of customer interaction history in Salesforce?

The feature that provides real-time visibility of customer interaction history in Salesforce is the Customer Timeline. This functionality consolidates and displays all interactions with a customer in one place, allowing users to view the history of communications, activities, and engagements across various channels. This holistic view aids customer service representatives in understanding a customer's journey and context during interactions, enhancing the ability to deliver personalized service.

The Customer Timeline is designed specifically to improve user experience by allowing representatives to quickly access relevant information and details about past interactions, which is crucial for effective and efficient customer service. This capability is particularly important in a contact center environment, where agents benefit from immediate access to customer data to resolve issues and provide support in a timely manner.

Meanwhile, the other options, such as the Activity Log, Contact Dashboard, and Interaction Report, serve different purposes but do not specifically encapsulate the real-time, comprehensive view of customer interactions that the Customer Timeline provides.