Prioritize: on-time order accuracy and SLA history, real-time inventory visibility (WMS/TMS/API), fulfillment throughput and peak capacity, returns processing, and experience with customs and cross-border shipments. Verify staffing models, contingency plans for peaks, and measurable KPIs tied to penalties or bonuses.

B2B typically favors larger pallet storage, fewer pick operations and longer dwell times; pricing leans on storage rates and pallet handling. Omnichannel requires faster pick-and-pack, higher labor per order, and reverse logistics support; expect higher per-order fulfillment fees and more granular billing for pick/pack and returns management.

Assess proximity to Red Sea ports and major overland corridors, highway and feeder-road quality, airport cargo capacity, and the 3PL's carrier contracts for ocean, air, and trucking. These elements determine lead times, freight costs, and the number of viable lanes for regional distribution.

Require a WMS with real-time inventory, API/EDI connectivity to order and sales platforms, shipment tracking and label generation, dashboard reporting for SLAs and KPIs, and returns management tools. Confirm batch reporting, exception workflows, and support for multi-location inventory allocation.