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Excuse me, what does "M/S" mean in the PI (Proforma Invoice)?
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I just started working in this industryWhen preparing a proforma invoice (PI) for a client, I noticed there's a "M/S" column, and the client also asked me for M/S information. Could you please explain what M/S actually means and how to fill it out?
Victor SunYears of service：5Customer Rating：5.0
Trade Risk Control ManagerStart a Chat
In trade documents，M/S typically refers to "Marks and Numbers"，which serve as an important basis for customs supervision and cargo identification. From a compliance perspective，you must ensure that the M/S information on the PI is fully consistent with subsequent customs declarations，bills of lading，packing lists，etc. Otherwise，you may face customs inspection delays，penalty charges for document corrections，or even impacted tax refunds. If the goods do not have marks，you should clearly fill in "N/M" (No Marks)，and never leave the field blank. Special reminder: If branded goods are involved，the brand logos in the marks must be consistent with intellectual property records to avoid infringement risks.
Michael ZhangYears of service：6Customer Rating：5.0
Customs Declaration & Compliance ExpertStart a Chat
M/S is the shipping mark, which directly determines the identification efficiency of goods in warehouses and during transportation. In practice, you need to synchronize M/S information with the freight forwarder for the preparation of bills of lading and manifests. For full containers, the shipping mark can be simpler; for LCL shipments, the shipping mark must be clear and accurate, otherwise there will be problems with container unloading at the destination port. The recommended format is: consignee's abbreviation + destination port + item number. Additionally, many shipping companies now require M/S information to be provided at the time of booking. Late submission may result in amendment fees, and a single letter error in the M/S can cost hundreds of dollars in amendment fees.
Jason WuYears of service：10Customer Rating：5.0
International Logistics & Supply Chain ManagerStart a Chat
M/S is a detail that demonstrates your professionalism to clients. In the PI, you can list the marking information separately and email it to the client, saying: "The M/S column in the attached PI has been filled out according to your company's requirements. Please confirm whether the marking format meets the customs clearance requirements of the destination port." This not only shows professionalism but also clarifies responsibilities. If the client hasn't specified a marking, you should proactively provide a solution for their confirmation to avoid subsequent disputes. Remember, once the M/S information is confirmed, all documents must be consistent. This is a key indicator for clients to evaluate your operational professionalism and directly affects their willingness to make subsequent payments.