Prioritize proximity to major motorways (A1), rail terminals and Lake Constance freight links; ensure the 3PL offers frequent carrier lanes, cross‑dock capacity, adequate yard and dock depth, and connections to domestic and regional parcel networks. Confirm WMS and carrier API integrations for real‑time routing and rate optimization.

Thurgau often offers lower land and lease costs than central Zurich while retaining strong market access. Evaluate total landed cost (rent, labor, utilities, local taxes) and labor pool skills. Select 3PLs that balance cost efficiency with proven operational KPIs and workforce stability to avoid service tradeoffs.

Key KPIs include order accuracy, on‑time fulfillment, pick/pack throughput, inventory accuracy and returns cycle time. SLAs should specify lead times, chargeback terms, peak capacity commitments and dispute resolution. Require reporting cadence and data access (WMS dashboards, EDI/API) to monitor performance.

Ensure the 3PL provides bonded warehouse options, experience with T1/T2 transit procedures, correct invoicing for VAT and duties, and clear processes for EORI documentation. Contractually define responsibilities for customs filings, duty payment timing and liability for misdeclarations to reduce cross‑border delays.

Run a pilot with incremental volumes, require defined ramp milestones and flexible rate bands for peak periods, request historical peak performance data and capacity guarantees, and include short‑term termination or volume adjustment clauses. Verify access to overflow networks or second facilities for high season coverage.