Which field will be used as the Primary Key in the Orders Data Extension?

In a data structure, the Primary Key is crucial because it uniquely identifies each record within that structure, ensuring that there are no duplicate entries. In this context, using OrderNumber as the Primary Key makes sense because it typically serves to identify each order distinctly. Each order would logically have a unique OrderNumber, allowing for the correct tracking and management of orders within the database.

By designating OrderNumber as the Primary Key, the system can efficiently reference specific orders without confusion. This is paramount for maintaining data integrity and for operations such as updates or deletions, where identifying the correct record is essential.

The other fields mentioned may be useful for various purposes, like identifying customers or providing context for the orders, but they do not serve as unique identifiers for each order in the same way OrderNumber does. Therefore, selecting OrderNumber reinforces the integrity and functionality of the Orders Data Extension.