Which type of propositions is typically excluded from a valid list of options?

The type of proposition that is typically excluded from a valid list of options is process-driven reminders for documentation. This is because such reminders are usually internal communication aimed at ensuring compliance or completing necessary administrative tasks rather than offering promotional or value-based interactions to the customer.

Promotional messages for customers, customer service reminders, and product upgrade invitations serve specific purposes that directly engage customers with offerings or information that can enhance their experience or encourage further interaction with the business. In contrast, process-driven reminders are focused on internal processes and do not contribute to customer engagement in a way that aligns with targeted communication strategies or marketing campaigns. Therefore, this type of proposition would generally not be included when considering valid options for customer-facing interactions.