What Is a Shipping Instruction (SI)? Its Role in Sea Freight Exports
In sea freight exports, a small error on a document can lead to amendment fees and delivery delays. That is why "what is a Shipping Instruction" is an important question for businesses new to exporting. Put simply, a Shipping Instruction is the guide the shipping line or forwarder uses to issue an accurate bill of lading. If the SI is correct, errors on the Bill of Lading are minimized. If the SI is wrong, the business may have to amend the B/L, pay extra fees and face clearance delays. Let H-Cargo Logistics explain in this article.
I. What is a Shipping Instruction?
1. What is a Shipping Instruction in import and export?
2. Who prepares and sends the Shipping Instruction?
3. Who receives the Shipping Instruction?
II. What is a Shipping Instruction used for in logistics?
III. What information does a Shipping Instruction contain?
IV. Shipping Instruction vs Booking Confirmation vs Bill of Lading
V. Common mistakes when preparing a Shipping Instruction
VI. Conclusion
I. What is a Shipping Instruction?
A Shipping Instruction is a document sent by the shipper or forwarder to the shipping line as the basis for issuing the ocean bill of lading.
1. What is a Shipping Instruction in import and export?
A Shipping Instruction, often abbreviated as SI, sets out the export shipment details for the shipping line, its agent or the forwarder. Based on the SI, the carrier prepares a Draft Bill of Lading for the shipper to check before the original bill of lading is issued.
In international trade, the SI is not a payment document or a stand-alone customs document. However, it is very important because the information on the SI is usually what appears on the Bill of Lading.
A Shipping Instruction usually confirms:
Shipper details: shipper name, address and contact details.
Consignee details: consignee and notify party as required by the transaction.
Transport details: port of loading, port of discharge, vessel name and voyage number.
Cargo details: description of goods, quantity, weight, volume, container numbers and seal numbers.
2. Who prepares and sends the Shipping Instruction?
The Shipping Instruction is usually prepared and sent by the shipper, the exporting company, or a forwarder authorized by the cargo owner. In practice, if the business works directly with the shipping line, its documentation team sends the SI to the carrier.
If the business uses a full logistics service, the forwarder usually helps prepare, check and send the SI. However, the cargo owner still needs to provide accurate information so the forwarder can process it in line with the sales contract and export documents.
Parties usually involved in preparing the SI include:
Shipper: provides shipper and cargo details and the B/L issuance request.
Consignee: the receiving party, usually stated according to the sales contract.
Forwarder: helps check, reconcile and send the SI to the shipping line.
Shipping line: receives the SI and issues the Draft B/L for checking.
3. Who receives the Shipping Instruction?
The Shipping Instruction is usually sent to the shipping line, its agent or the forwarder handling the shipment. The recipient uses this information to prepare the Draft B/L and then sends it back to the shipper or forwarder for checking.
Depending on the workflow, the SI can be sent by email, through the shipping line's online system or via the forwarder's document platform. Some carriers require the SI in a specific format and before the SI cut-off.
II. What is a Shipping Instruction used for in logistics?
The Shipping Instruction gives the shipping line or forwarder the data needed to issue the bill of lading. It is a key document in the sea export process.
The main roles of the SI include:
Basis for the Draft B/L: The shipping line uses the SI to prepare a draft bill of lading for the shipper to check before final issuance.
Reconciling shipment details: The SI helps cross-check information between the booking, container, seal, invoice, packing list and contract.
Reducing errors on the Bill of Lading: A correct SI reduces the risk of a wrong description of goods, wrong consignee or wrong port of destination on the B/L.
Supporting export document management: Forwarders can use the SI to track document cut-offs and handle B/L issuance requests.
Specifying how the B/L is released: The SI states whether an Original B/L, Surrendered B/L or Telex Release is required.
III. What information does a Shipping Instruction contain?
A Shipping Instruction should fully show the shipper, consignee, cargo, container, routing and B/L issuance requirements.
Information group | Details to declare |
Shipper details | Company name, address, tax code if required, contact details |
Consignee details | Consignee name, address, tax code or identification number if required by the destination market |
Notify party | The party notified on arrival, which can be the consignee or a third party |
Transport details | Vessel name, voyage number, port of loading, port of discharge, place of delivery |
Cargo details | Description of goods, number of packages, weight, volume, HS code if required |
Container details | Container numbers, seal numbers, container type, number of containers |
Freight terms | Freight Prepaid or Freight Collect |
B/L requirement | Original B/L, Surrendered B/L, Telex Release or Sea Waybill |
IV. Shipping Instruction vs Booking Confirmation vs Bill of Lading
The Shipping Instruction, Booking Confirmation and Bill of Lading all appear in the sea export process. However, each document has a different nature and purpose.
Criteria | Shipping Instruction | Booking Confirmation | Bill of Lading |
Nature | Instructions for preparing the B/L | Confirmation of space booking | Transport document |
Prepared/issued by | Prepared by the shipper or forwarder | Issued by the shipping line or forwarder | Issued by the shipping line or forwarder |
Purpose | Provides information for the B/L | Confirms vessel schedule, space and booking | Confirms the goods have been received/carried |
When used | Before the Draft B/L is issued | After the booking is made | After the goods are received or loaded on board |
Document value | Guides B/L issuance | Used to execute the shipment | Has legal value in carriage |
V. Common mistakes when preparing a Shipping Instruction
An incorrect Shipping Instruction can lead to a wrong Draft B/L, a wrong original B/L, or documents that must be amended after issuance.
Common mistakes include:
Wrong shipper or consignee name: This directly affects the B/L, banking documents and cargo collection.
Wrong notify party: The party that should be notified of arrival may not receive the information in time.
Wrong port of loading or discharge: This creates major risk in transport coordination and delivery.
Wrong description of goods: A description that does not match the invoice, packing list or import requirements can cause clearance problems.
Wrong container or seal numbers: A common error when the SI is updated after stuffing.
Wrong freight terms: Confusing Freight Prepaid and Freight Collect can affect who is responsible for payment.
Late SI submission: After the SI cut-off, the shipping line may refuse to process it or charge extra fees.
See also: Project cargo transport services
VI. Conclusion
What is a Shipping Instruction? It is the shipping guide that gives the shipping line or forwarder the information needed to issue the Bill of Lading. The SI is not the official bill of lading, but it determines many key details on it.
Businesses should complete the SI fully, submit it before the cut-off and check the Draft B/L carefully before confirming issuance. This limits document errors, avoids B/L amendment fees and protects the delivery schedule.
Contact H-Cargo Logistics today for support with Shipping Instructions, B/L checking and accurate, fast and secure sea export documentation.
Contact us for a free consultation: H-Cargo International Logistics · 113-115 Ung Van Khiem St., Ward Thanh My Tay, Ho Chi Minh City · Tel: +84 888 909 186 · Email: jack.tran@hcargovn.com · Web: www.hcargovn.com
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