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When I attempted to track my Flash Express shipment, I received an invalid waybill error message. Why?

Last update 11.12.2561


This could be various reasons why you received an invalid waybill error message. The Flash Express Waybill for every shipment is a 10-digit numeric number (e.g. TH5803VAY72, 2345678901), so please recheck the number and try again. If you still have trouble tracking your parcel, please contact our customer service.

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