How is a context keyused by Digital Commerce APIs?

In Salesforce Industries CPQ, a context key is used primarily within Digital Commerce APIs to describe the customer during rules processing. This allows the system to tailor the application of business rules based on specific customer attributes or other contextual factors. Context keys serve as identifiers that influence rule execution to customize the experience or offerings for different customer segments, helping in dynamic adjustments such as pricing adjustments, visibility of certain product options, or promotions based on the customer's profile or behaviors.