Evaluate pick/pack throughput, SLA performance for same‑ and next‑day orders, technology (WMS and API connectivity), returns processing, and capacity for seasonal scaling. Request KPIs (OTD, inventory accuracy, chargeback history) and visit facilities to validate dock capacity, racking, and security.

Compare storage (per pallet/bin), receiving and putaway, pick/pack by piece or order, outbound palletization, kitting fees, monthly minimums, and accessorials (long‑term storage, returns, special handling). Review billing cadence, termination clauses, and volume‑based rate tiers.

Key factors include proximity to interstates and intermodal yards, Port of Portland schedules, PDX air cargo availability, and density of parcel carrier hubs. Shorter dray distances and efficient cross‑dock options lower transit time and reduce fuel/linehaul charges.

Top 3PLs provide integrated inventory visibility across channels, batch and split fulfillment, EDI/API order routing, and dedicated returns workflows with inspection, refurbish, and restock processes. Confirm reverse logistics SLAs and disposition options for damaged goods.

Assess highway access, dock capacity, clear height, racking density, proximity to carrier hubs, labor availability and wage trends, utility reliability, and potential for expansion. Factor in local permitting, tax incentives, and proximity to key suppliers and customer clusters.