Scoring and risk

OTIF = dateOk × stockCertainty × fillReliability

Modes change weights only (balanced, cheapest, greenest, nutrition, safest). Diet and spend rules always win.

Fallback ladder: switch → earlier → split → buffer → defer → substitute → escalate.

Mode

hard deadline critical lineusual product arrives late by 0 daysOTIF bar from the slip: 0.95

Candidate	dateOk	stock	fill	OTIF	cost	fit	carbon	nutrition	total
Usual cream, stocked pick €58.20 · 21.6 kg CO₂e · stock confirmed	1.00	0.99	0.97	0.96	0.86	1.00	0.29	0.76	0.853
Cheaper cream, supplier €49.90 · 22.1 kg CO₂e · stock unconfirmed	1.00	0.85	0.93	0.79 below bar → exceptions, then OTIF check	1.00	0.50	0.29	0.73	0.724
Oat cream, plant-based €61.50 · 6.3 kg CO₂e · stock confirmed	1.00	0.95	0.95	0.90 below bar → exceptions, then OTIF check	0.81	0.50	1.00	1.00	0.794

Weights for balanced: cost 0.3, OTIF 0.25, fit 0.25, carbon 0.1, nutrition 0.1. Modes change weights, never constraints: diet rules, budget and the OTIF bar always apply.