What is the main benefit of inputting a marketing forecast?

The main benefit of inputting a marketing forecast is that it allows for the forecasts to automatically segregate into lower levels of the planning hierarchy. This capability supports a more nuanced understanding of market dynamics by breaking down aggregated data into smaller, more manageable segments. When a marketing forecast is inputted into the system, it can be used to inform various levels of planning, enabling teams to align resources and actions based on specific, detailed insights rather than broad estimates. This level of granularity ultimately improves decision-making and responsiveness to market conditions, allowing organizations to adapt their strategies effectively.

The other answers do not align with the primary aims of forecasting within a marketing context. Keeping forecasts static, confusing the planning hierarchy, or submitting forecasts without review all introduce challenges or inefficiencies that would not benefit an organization seeking accuracy and alignment in its marketing strategies. Such drawbacks could lead to misalignment of resources or an inability to react properly to market changes, which are not typically desirable outcomes in the planning process.