Evaluate network coverage and proximity to major carriers; throughput SLAs and peak scalability; inventory visibility via WMS/API; returns and reverse-logistics capability; temperature-control and value-added services; labor reliability and local compliance. Prioritize partners that can demonstrate consistent OTIF, inventory accuracy, and transparent billing.

Proximity to ports and airports reduces inland transit days and handling steps, lowering total landed cost. Efficient road and rail corridors enable faster line-haul and last-mile handoffs. Assess consolidation options, zone-skipping opportunities, and carrier contracts that optimize cost per order vs delivery SLA.

Prioritize cross-dock capability, flexible pick-and-pack, kitting and light assembly, returns processing, temperature-controlled storage where required, and robust ASN/EDI integration. Service reliability, accuracy rates, and the ability to scale for promotions or seasonal peaks matter for both B2B and DTC models.

Negotiate clear storage vs throughput fees, volume and billing minimums, and defined SLA penalties. Include seasonality clauses, inventory aging rules, and transparent cost-to-serve reporting. Seek monthly reconciliation, itemized invoicing, and predictable escalation paths for changes in demand.

Track KPIs such as OTIF, order cycle time, inventory accuracy, picking accuracy, return rate, and cost per order. Use regular business reviews, shared dashboards, root-cause analysis, and joint improvement plans. Ensure data access (APIs/BI) for ongoing monitoring and tactical adjustments.