In SAP S/4HANA Transportation Management, the Post-Processing Framework (PPF) is used to automate actions such as printing documents, sending emails, and generating XML messages. According to the SAP documentation, a single PPF action profile can be assigned to a freight order type (e.g., FOT1) and can include multiple actions, such as printing a road waybill, printing a loading list, printing labels, sending emails, and sending XML messages. Each action is defined within the action profile, and the profile is then linked to the freight order type in Customizing. Since all the required actions (printing documents and sending messages) can be configured within one action profile, the minimum number of PPF action profiles needed is1.

The other options are incorrect:

A (4), C (2), and D (3)suggest multiple action profiles, which are unnecessary since a single profile can handle all actions.