If a data extension needs to be refreshed daily with changing product data, what import type should be used?

Selecting the Add/Update import type is the most effective choice for refreshing a data extension daily with changing product data. This import type allows for both the addition of new records and the updating of existing ones, which ensures that your data extension always has the most current and comprehensive information.

When using Add/Update, if a record does not already exist in the data extension, it will be added. Conversely, if the record already exists, the import will update it with the new attributes or values provided. This dual functionality is essential for managing datasets where products may frequently change or new products may be introduced on a daily basis.

Selecting this option streamlines the data management process and minimizes the potential for data loss, as it accommodates both the need to incorporate fresh entries and the necessity of keeping existing records up to date. Thus, it aligns perfectly with the requirement of maintaining a data extension that reflects the latest product data regularly.