MAPE and its limitations

Forecasting is a structured estimate for a defined decision, horizon and level of detail. This guide introduces mape and its limitations and shows where it fits in a practical planning cycle.

Practitioner lens

Use a simple baseline when learning mape and its limitations. It makes model value visible and can expose a data issue that would otherwise be mistaken for algorithmic improvement.

First experiment

Review error by horizon and segment; an average can conceal a severe miss on a critical item.

This is an original educational brief. It is a starting point for discussion, not a claim that one technique fits every supply chain.