New sellers choosing an overseas warehouse most easily fall into the "compare unit price" pit. A few cents lower per order may buy higher mis-ship rate and slower shipping. What really matters are these 5 hard metrics.
1. Inventory accuracy
Ask clearly how the other side guarantees book-physical consistency. Below an experienced water level, overselling and "order but no goods" repeat.
2. Cut-off time
By what time each day do orders ship same day? This directly decides your fulfillment duration and affects platform assessment.
3. System capability
Can it integrate your platform / ERP? Can inventory and tracking be seen in real time? Weak system means all manual reconciliation later.
4. Exception handling
How does it compensate and follow up on mis-ships, lost parcels, returns? Those without a clear SOP are most passive when things go wrong.
5. Last-mile bargaining
The warehouse's bargaining power with last-mile shows up in your per-order freight.
Comparing on unit price is entry level; checking these 5 is passing.
List these 5 as a table and ask each vendor — far more reliable than just reading the quote.