Which of the following is NOT a function of the guest accounting module?

The guest accounting module primarily focuses on managing financial transactions, records, and accounts related to guests during their stay. It plays a crucial role in tracking various guest-related financial activities such as billing, payments, and credit management which includes monitoring guest credit limits and generating transaction reports.

Managing room bookings, however, is typically a function of a reservation or property management system rather than the guest accounting module. This function involves scheduling and organizing room assignments, inventory management, and coordinating availability, which fall outside the scope of financial tracking and accounting practices. Therefore, it is accurate to identify that managing room bookings is not a function of the guest accounting module.