Changes on the cancellation forecast are reflected in which of the following?

The correct answer is that changes on the cancellation forecast are reflected in the available transient supply and total hotel authorizations screen. This screen is essential for tracking the status of room inventory and bookings, providing insights into how cancellations impact overall supply. When cancellations occur, it's crucial for the hotel management system to update the transient supply figures, which directly affects the availability of rooms for transient sales.

This update helps revenue managers quickly assess current inventory levels and adjust pricing and distribution strategies accordingly. By monitoring these changes, hotels can react proactively to shifts in demand and optimize their revenue management approaches.

Additionally, while other options may provide useful information, they do not specifically focus on the immediate impact of cancellation forecasts on available supply and authorizations, which is critical for managing transient inventories effectively. This specificity is what makes the second option the most relevant choice for understanding the effects of cancellations on hotel operations.