---
title: "Ecsi"
description: "Export Cargo Shipping Instruction/Preadvice. Instructions from shipper with details of all parties involved and description of goods."
url: "https://oceancargo.co.uk/shipping-terms/ecsi"
date: "2026-05-15T19:23:43+00:00"
language: "en-GB"
---

![Ocean Cargo](https://oceancargo.co.uk/images/GenPics/OCs-Customs-Brokerage.webp)

 # Understanding the Export Cargo Shipping Instruction (ECSI) / Preadvice

## What is an Export Cargo Shipping Instruction (ECSI)?

The Export Cargo Shipping Instruction, often abbreviated as ECSI, or sometimes referred to as a Preadvice, is a pivotal document in international trade. It serves as the primary communication from the shipper to the freight forwarder, providing all the necessary details to arrange and execute an export shipment. Think of it as your comprehensive instruction manual for moving goods from origin to destination.

At Ocean Cargo, we understand that precision in documentation is paramount. A well-prepared ECSI ensures a smooth, efficient, and compliant shipping process, minimising delays and potential errors. It's the foundation upon which all subsequent shipping documents, such as the Bill of Lading or Air Waybill, are built.

Without a clear and accurate ECSI, freight forwarders like Ocean Cargo would struggle to book cargo space, complete customs declarations, or even correctly label your goods. It's the blueprint for your cargo's journey, detailing everything from the nature of the goods to the specific parties involved in the transaction.

## Why is the ECSI So Important for Your Export Shipments?

The significance of the ECSI cannot be overstated. It's not just a formality; it's a critical tool that drives efficiency, compliance, and accuracy throughout the entire export process. Here’s why it’s indispensable:

- **Accuracy in Documentation:** The ECSI provides the core data for all other shipping documents. Errors here propagate through the entire chain, leading to costly amendments, delays, and potential fines.
- **Customs Compliance:** Accurate information is essential for customs declarations. The ECSI ensures that the correct commodity codes (HS Codes), values, and descriptions are used, preventing issues with HMRC and destination customs authorities. Ocean Cargo's [customs compliance services](https://oceancargo.co.uk/services/customs-compliance/) rely heavily on the precision of your ECSI.
- **Efficient Booking & Logistics:** With all details in one place, your freight forwarder can quickly and accurately book space on vessels or aircraft, arrange road transport, and coordinate warehousing. This streamlines the entire logistics chain, whether you're using [sea freight](https://oceancargo.co.uk/services/sea-freight/) or [air freight](https://oceancargo.co.uk/services/air-freight/).
- **Cost Control:** Correctly declared weights, dimensions, and cargo types prevent unexpected charges or re-weighing fees at ports or airports.
- **Risk Mitigation:** Detailed instructions help prevent misrouting, cargo damage, or security breaches. Knowing exactly what is being shipped and by whom enhances the security of your supply chain.
- **Communication Hub:** It acts as a central point of reference for all parties involved – the shipper, consignee, freight forwarder, carrier, and customs brokers.

For businesses shipping [excavators and diggers to the UAE](https://oceancargo.co.uk/countries/uae/excavators-diggers-uae) or [wind turbine components to Australia](https://oceancargo.co.uk/countries/australia/wind-turbine-components-blades-nacelles-tower-sections-australia), the ECSI is the first step in ensuring a complex [project logistics](https://oceancargo.co.uk/services/project-logistics "project logistics") move is executed flawlessly.

## Key Information Required in an ECSI

A comprehensive ECSI provides a holistic view of the shipment. While specific forms may vary, the core information remains consistent. Here’s a breakdown of the essential details Ocean Cargo requires to manage your export effectively:

### 1. Shipper Details

- **Full Company Name and Address:** The legal entity exporting the goods.
- **Contact Person and Details:** Name, phone number, and email for primary communication.
- **VAT/EORI Number:** Essential for customs declarations in the UK and EU.

### 2. Consignee Details

- **Full Company Name and Address:** The legal entity receiving the goods at the destination.
- **Contact Person and Details:** For communication at the destination.
- **Tax ID/VAT Number:** Required by destination customs authorities in many countries.

### 3. Notify Party Details (If Different from Consignee)

- **Full Company Name and Address:** Often a bank, agent, or another party who needs to be informed of the shipment's arrival.
- **Contact Person and Details:** For notification purposes.

### 4. Goods Description

- **Accurate and Detailed Description:** What exactly are you shipping? Avoid vague terms. Include brand names, model numbers, and specific types of goods.
- **Harmonised System (HS) Code:** The internationally recognised commodity code. This is crucial for customs duties and regulations.
- **Number of Packages:** Total count of cartons, pallets, crates, etc.
- **Type of Packages:** E.g., cartons, wooden crates, pallets, drums.
- **Gross Weight (kg):** Total weight of goods including packaging.
- **Net Weight (kg):** Weight of goods excluding packaging.
- **Dimensions (cm):** Length x Width x Height for each package or total volume.
- **Volume (CBM):** Cubic metres.
- **Value of Goods:** For customs purposes and insurance. Specify currency.
- **Dangerous Goods Information:** If applicable, UN number, class, packing group, and proper shipping name. This requires specialist handling and documentation.

### 5. Shipping Instructions

- **Incoterms® 2020:** Clearly state the agreed Incoterm (e.g., EXW, FOB, CIF, DDP) and the named place. This defines responsibilities and costs between buyer and seller.
- **Port of Loading (POL):** Where the cargo will be loaded onto the main carrier (e.g., Felixstowe, Southampton, London Heathrow).
- **Port of Discharge (POD):** Where the cargo will be offloaded from the main carrier.
- **Final Destination:** The ultimate delivery address.
- **Mode of Transport:** Sea freight ([FCL](https://oceancargo.co.uk/services/sea-freight "FCL")/[LCL](https://oceancargo.co.uk/services/sea-freight "LCL")), air freight, [road freight](https://oceancargo.co.uk/services/road-freight/).
- **Container/Vehicle Type (for FCL/FTL):** E.g., 20ft GP, 40ft HC, curtain-sider.
- **Required ETD/ETA:** Preferred or required departure/arrival dates.
- **Special Instructions:** Any specific handling requirements, temperature control, stacking limitations, or delivery instructions.
- **Insurance:** Whether the shipper requires the freight forwarder to arrange cargo insurance.
- **Bill of Lading/Air Waybill Instructions:** E.g., "To Order," "Straight Consignment," number of original B/Ls required.

### 6. Commercial Documents

- **Commercial Invoice Number and Date:** Reference for the sale.
- **Packing List Number and Date:** Reference for the cargo details.
- **Purchase Order Number:** Your internal reference.
- **Letter of Credit (LC) Details:** If applicable, including LC number and issuing bank.

Providing these details accurately to Ocean Cargo ensures your [sea freight to Canada](https://oceancargo.co.uk/countries/canada/sea-freight-canada) or [customs brokerage for the USA](https://oceancargo.co.uk/countries/usa/customs-brokerage-usa) is handled with the utmost professionalism and efficiency.

## The ECSI Process: From Shipper to Shipment

The journey of an ECSI is integral to the overall shipping process. Here’s how it typically unfolds:

1. **Shipper Prepares ECSI:** The exporter compiles all the necessary information, often using a template provided by their freight forwarder or an internal system. This is the critical first step.
2. **Submission to Freight Forwarder:** The completed ECSI is sent to Ocean Cargo. This can be via email, a dedicated online portal, or other agreed communication channels.
3. **Review and Clarification:** Our expert team reviews the ECSI for completeness and accuracy. If any details are missing or unclear, we will contact the shipper for clarification to prevent future issues.
4. **Booking and Documentation:** Once the ECSI is confirmed, Ocean Cargo uses the information to:
    - Book space with the chosen carrier (shipping line or airline).
    - Prepare the draft Bill of Lading (B/L) or Air Waybill (AWB).
    - Generate customs declarations (e.g., EX-A in the UK).
    - Arrange for collection and onward transport.
5. **Confirmation and Execution:** The shipper receives a draft B/L or AWB for final approval. Upon confirmation, the shipment proceeds, and the ECSI data forms the basis for all subsequent tracking and communication.

This structured approach, driven by a precise ECSI, is how Ocean Cargo ensures your cargo moves seamlessly from your premises to its international destination.

### Frequently Asked Questions About ECSIs

#### What is the difference between an ECSI and a Bill of Lading?

The ECSI (Export Cargo Shipping Instruction) is the initial instruction from the shipper to the freight forwarder, detailing how the shipment should be handled. The Bill of Lading (B/L) is a legal contract of carriage issued by the carrier (or freight forwarder acting as carrier) to the shipper, acknowledging receipt of goods and promising to deliver them to the consignee. The B/L is created \*from\* the information provided in the ECSI.

#### Can I amend an ECSI after submission?

Yes, amendments are possible, but it's crucial to do so as early as possible. Once a shipment is booked, or customs declarations are filed, amendments can incur charges from carriers and customs authorities. Late amendments can also cause significant delays. Always double-check your ECSI before submission to Ocean Cargo.

#### What happens if my ECSI contains errors?

Errors in an ECSI can lead to a range of problems, including incorrect Bills of Lading, customs delays, fines, misrouting of cargo, and even cargo being held at the port of discharge. It can also result in additional costs for amendments or re-documentation. This is why Ocean Cargo places such emphasis on accurate and complete ECSIs from the outset.

#### Is an ECSI required for all types of international shipments?

While the term "ECSI" might vary, the underlying requirement for detailed shipping instructions from the exporter to their freight forwarder is universal for virtually all international commercial shipments. Whether it's a small air freight parcel or a full container load via sea freight, your freight forwarder needs comprehensive instructions to manage the logistics effectively.

### Ready to simplify your global logistics?

Get advice and a quote for your next shipment. Contact the Ocean Cargo team to start shipping.

[Freight Quote](https://oceancargo.co.uk/contact-us)

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