What can I put in the subject line of a shipment notification?

With a platform that signs a business associate agreement (BAA), the subject line can carry order status, an order number and the medication name. A disclosure to the patient of their own information is permitted. Organizations can limit the subject line to status wording and a brand name, and keep the medication, dose, tracking number and delivery details in the body, because subject lines appear on lock screens and in shared inboxes.