What is the property mode for the referenced property Customer.Address(Billing).State?

The property mode for the referenced property Customer.Address(Billing).State is classified as Read-Only when the property is designed not to allow changes by the user during certain interactions or when data integrity is prioritized. This is often the case with properties that are derived from system-generated calculations or when the information is pulled from an external source where it's critical that the data remains accurate and unaltered by users.

In this context, the property being referenced is specifically tied to customer information that may be managed at a higher level or through a different process. Marking the property as Read-Only ensures that users can view the state information for the billing address but cannot modify it, thereby helping to maintain consistency across the system.

The other options represent different modes of property access. For instance, Write-Only would imply that a user can input data but not view it, which is not the case for a typical address property. Default typically refers to system-defined characteristics or values not explicitly stated, and Editable allows users to make changes, which contradicts the Read-Only designation required for maintaining the integrity of critical data like billing state.