Which function requires three input worksheets relating to error metrics?

The function that requires three input worksheets related to error metrics is the standard deviations of forecast errors function. This function is designed to quantify the variability of forecast errors over time. By using multiple data sources, particularly three input worksheets, it can calculate the standard deviation, which provides insight into the accuracy and reliability of forecasts by highlighting how consistently forecasts align with actual results.

Utilizing three sources allows for a comprehensive view of forecast performance across different timeframes, products, or scenarios, enabling users to analyze and interpret variability effectively. The output of this function is essential for organizations aiming to improve their forecasting processes and decision-making.

In contrast, other functions, such as trend analysis or time phase safety stock, may not require the same level of detail regarding error metrics or may rely on fewer inputs to perform their analyses effectively. Statistical errors by date could focus on a single aspect of error measurement without the need for a comprehensive input setup involving three distinct worksheets.