CargoWise ERP Glossary - Key Terms & FAQs

Our CargoWise ERP Glossary Terms provide clear, concise definitions of key terms used in CargoWise, helping users navigate the system with confidence. Along with these definitions, we've included in-depth FAQs to clarify complex concepts, ensuring you get the most out of your CargoWise solutions.

Shipper’s Letter of Instruction (SLI)

Last updated: August 5, 2025
Logistics CargoWise
S

The Shipper’s Letter of Instruction (SLI) is an important export document that contains precise instructions from the exporter (or shipper) to the freight forwarder or carrier. It serves as an official instrument that directs how the shipment is handled, documented, and carried. The SLI often includes important information such as the consignee’s contact information, mode of transportation, preferred delivery terms (Incoterms), cargo description, export license numbers, and directions for issuing other documents such as the bill of lading or commercial invoice.

An SLI not only promotes easy communication between the exporter and logistics providers, but it also aids in regulatory compliance by identifying the necessary documents and approvals. SLIs can be generated and exchanged electronically through digital platforms like CargoWise, saving paperwork and the possibility of misinterpretation. This document also permits the forwarder to file customs declarations and coordinate with carriers on the shipper’s behalf. Overall, the SLI is critical to ensure that international shipments are completed correctly and on time.

Frequently Asked Questions

What is the purpose of the Shipper's Letter of Instruction?

The SLI contains clear, written instructions from the exporter to the freight forwarder on how to handle and dispatch a specific export consignment, including documentation and customs processes.

Who prepares and issues the SLI?

The exporter or shipper creates and issues the SLI, which is normally included in the export documentation package given to the shipment forwarder or customs broker.

Is the SLI a required document for international trade?

While not required in all countries, the SLI is a best practice document that freight forwarders frequently seek to ensure proper shipment handling and compliance.

Can the SLI be used to provide a power of attorney?

Yes, in many cases, the SLI includes a provision allowing the freight forwarder to act on the shipper's behalf when completing export declarations and organizing transportation.

How does CargoWise manage the SLI?

CargoWise enables users to electronically generate, store, and exchange SLIs, which are linked directly to cargo files and allow for smooth interaction and compliance management.