To access a customer property such as Age or Name in expression builder, which prefix must be used?

In Pega's expression builder, when you want to access customer properties like Age or Name, the primary dot prefix is indeed the correct choice. This prefix allows you to reference properties that belong directly to the current page of the context or the data object, making it essential for working with customer-specific information.

Using the primary dot prefix ensures that you are targeting the right instance of the data associated with the current case or customer. It serves as a clear indicator in your expressions that you're referring to the properties directly related to the primary data source of your current context.

The other prefixes, while they may seem similar, are used for different contexts or scopes. This differentiation is crucial in maintaining clarity and accuracy when referencing properties in expressions, leading to more effective decisioning and automation processes in Pega.