3PL WMS cost
A 3PL WMS prices differently from a brand-owner WMS: per-client billing logic, multi-warehouse tiers, and EDI onboarding fees per retail trading partner. Extensiv, Logiwa, ShipHero, Korber, and Softeon lead this category.
Per-client and storage billing
3PL WMS systems need a billing engine: per-client storage, per-pallet, per-order, per-line, accessorial charges. Extensiv has the deepest billing-engine lineage. Korber and Softeon ship comparable mid-market depth. SMB cloud (ShipHero, Logiwa) handles single-digit client counts well; complexity climbs at 20+ clients.
Per-order economics at SMB-to-mid
Up to 50K monthly orders per client, per-order SaaS wins. Past 200K orders per client, the contract usually re-tiers to a flat platform fee. 3PLs with mixed client volumes (some big, some small) often blend per-order with per-warehouse pricing.
Onboarding fees compound
Every new retail trading partner is $800-$2,500 in EDI mapping plus 20-60 SI hours. A 3PL onboarding 5 new retail clients/yr should budget $20K-$50K just in EDI line items. See /integrate/edi-3pl.
Buyer questions
Best 3PL WMS for <20 clients?
Extensiv, ShipHero, Logiwa. Pick on cart/marketplace ingest depth (Logiwa) vs brand-side breadth (ShipHero) vs billing-engine depth (Extensiv).
Best 3PL WMS for >50 clients with complex billing?
Korber, Softeon, Tecsys. The billing-engine depth and SI muscle warrant the quote-only commitment.