Accuracy

Forecast value added

Each layer should beat the previous one. Negative deltas mean lower error — value added.

Portfolio WAPE trend

Last 12 planning cycles — lower is better.

Realised value-add

The same waterfall, measured against demand that has actually landed rather than the backtest window.

Collecting — realised accuracy appears once a published cycle's window has elapsed.

Accuracy by family

Family SKUs WAPE Accuracy Bias