Ask about WMS integrations (API/EDI), real‑time inventory visibility, throughput and SLA metrics, handling rates (pick/pack, replenishment), returns processing, kitting and value‑added services, security and insurance limits, and carrier connectivity for parcel and pallet networks. Request demo access and sample KPI reports prior to selection.

A warehouse in East Sussex typically reduces final‑mile transit to southern UK customers and provides faster access to Gatwick (30–60 minutes by road) and short‑sea ferries at Newhaven. Proximity to the M23/M25 preserves quick access to London and national trunk routes, often improving reliability versus inner‑city London terminals subject to congestion.

Key cost drivers include storage rates (by pallet or pallet‑bay), pick and pack fees, inbound/outbound handling, minimum throughput charges, slotting and seasonal surcharges, demurrage, and transport uplift fees. Negotiate clear SLAs, KPIs, invoice billing cadence, termination notice, and liability/insurance terms to control total cost‑to‑serve.

Request the 3PL's carrier manifest and daily pickup schedules, sample transit maps, and proof of parcel volumes handled. Confirm hub connections to national carriers, express cutoff times, aggregation/consolidation options, and on‑site scale and sorting capacity to ensure reliable last‑mile performance for your volumes.