Free Shipper's Letter of Instruction (SLI) Generator

Free Shipper's Letter of Instruction Generator for Exporters

A Shipper's Letter of Instruction, commonly called an SLI, is a practical shipment-instruction document used to communicate what an exporter wants a freight forwarder or logistics agent to do. The exact fields vary by country, shipment type, forwarder, carrier and filing process, so this Today Adviser tool is designed as a flexible SLI draft generator rather than a claimed universal official form.

For Indian exporters, an SLI can be useful as a single working reference that brings party details, routing, commercial references, cargo information, package counts, weight, Incoterm, freight-payment instructions, insurance instructions, required documents and special handling notes into one place. That reduces repetitive re-entry when the same shipment information later appears in a Bill of Lading draft, Commercial Invoice, Packing List or Certificate of Origin draft.

This free SLI generator is built for exporters, manufacturers, sourcing teams, freight coordinators and small logistics departments that need a clean starting document without paying for specialist document software. Enter the shipment once, check the live A4 preview, then download the draft and reconcile it before sending it to your forwarder.

What information should an SLI contain?

A useful SLI normally identifies the parties and the shipment. That means the exporter or shipper, consignee, forwarding agent, reference number, invoice reference and basic transport information. Routing fields help the forwarder understand the requested movement, including the place of receipt, loading point, discharge point and final destination. An Incoterm field is also valuable because it makes the commercial handoff visible to the operational team.

Cargo information is another core part. A practical line-item schedule can include a description, HS code, quantity, package count, package type, gross weight and volume. Your SLI should agree with the commercial invoice and packing list wherever the same information is repeated. The goal is not to create three versions of the truth; the goal is to make it easy to compare them before documents are released.

Handling instructions can be equally important. Examples include whether cargo is fragile, whether it must remain dry, whether pallets may be stacked, whether the buyer needs a draft transport document for approval, or whether insurance must be arranged. Keep these instructions specific and commercially appropriate. Avoid vague wording that leaves a forwarder guessing.

SLI vs Shipping Instructions vs Bill of Lading

These documents are related but not identical. An SLI is generally an instruction from the shipper to the forwarding or logistics side. Shipping instructions are commonly the detailed data submitted to the carrier so the transport document can be prepared. A Bill of Lading is a carrier-issued transport document for ocean cargo; an air shipment uses an Air Waybill. Treating them as interchangeable can create errors.

The workflow is usually easier when the SLI is treated as the operational source for the forwarder and then checked against the final carrier draft. A typo in the consignee, port, cargo description, package count or weight can propagate into later paperwork. Using a structured SLI first gives your team a clear checkpoint before the information gets copied into other documents.

How exporters can use this free SLI tool

Start with the document number and date. Add the shipper, consignee, forwarder and notify party. Then fill the route and trade terms. Add one cargo line for each distinct product or packing unit that needs separate identification. Enter package counts, gross weight and CBM carefully. Add container and seal details when available, then choose the B/L handling instruction, insurance request and special instructions.

Use the documents checklist near the bottom to record which supporting papers should travel with the shipment. The checklist is intentionally editable: requirements can differ by destination, commodity, buyer, bank, carrier, customs process and transaction structure. Add permits, inspection certificates, origin documents, insurance paperwork or buyer-specific requirements in the notes field.

Finally, review the generated draft against your Export Profit Calculator or Export Break-Even Price Calculator where relevant to confirm the commercial terms, and check freight assumptions with your Freight Quote Comparison Calculator. For shipment measurements, your Pallet Calculator, Container Loading Calculator and Chargeable Weight Calculator can help validate the physical values entered into the SLI.

Why SLI accuracy matters

Export documents work best when commercial, logistics and compliance data line up. A common source of delay is not a complicated legal issue but a small mismatch: a consignee name shortened on one document, a package count changed after packing, a different weight used by the forwarder, or a port name entered differently from the booking. These inconsistencies can trigger clarification emails, document corrections and avoidable operational work.

That is why a good SLI should be treated as a pre-dispatch quality-control document. It can be reviewed internally by the exporter and then cross-checked by the forwarder. For teams handling repeat shipments, keeping a consistent structure also makes training easier and reduces the chance that an experienced employee's personal spreadsheet becomes the only source of institutional knowledge.

Important note for India and international shipments

This generator is intentionally a draft/template tool. An SLI does not become an officially approved government filing merely because it was generated here. Depending on the shipment, country, commodity and service provider, the forwarder, customs broker, carrier, bank or other authority may require additional information or a specific format. For U.S. export workflows, for example, SLI practice is closely connected with written authorization and Electronic Export Information responsibilities; those requirements are country-specific and should not be copied blindly into an India shipment.

For India-origin exports, use the finished draft alongside the actual instructions from your freight forwarder, customs broker, carrier and relevant government systems. Where a transaction is under documentary collection or letter of credit terms, also compare the document set with the bank's requirements. When a buyer or carrier supplies its own SLI form, that form should take precedence over this generic generator.

Best practices before sending an SLI

Use the same spelling of company names and addresses across documents. Keep the commercial invoice reference consistent. Reconcile package count and gross weight with the packing list. Confirm whether the shipment is prepaid or collect. Confirm the requested transport document type. Make the insurance instruction explicit instead of assuming someone else will arrange it. Verify ports and final destination. Add booking references as soon as they are available. For containerized cargo, confirm container and seal information after stuffing, not before, whenever those details can change.

It is also smart to save the final SLI with your shipment record. The SLI can become a useful audit trail for what the exporter actually instructed the logistics provider to do. This is especially valuable when multiple parties are involved, such as a seller, buyer, consolidator, freight forwarder, customs broker and carrier.

Related free Today Adviser export tools

Build a complete shipment workflow with the Free Commercial Invoice Generator, Free Proforma Invoice Generator, Free Export Packing List Generator, Free Bill of Lading Draft Generator, Free Certificate of Origin Draft Generator, Free Export Shipping Label Generator and Free Demurrage & Detention Calculator. For cost planning, use the Export Profit Calculator, FOB/CFR/CIF Calculator, Landed Cost Calculator, Marine Cargo Insurance Calculator and Air vs Sea Freight Calculator.

Using connected tools together is often more useful than relying on one giant form. For example, the SLI can hold the operational instructions, the commercial invoice can carry the transaction values, the packing list can carry detailed package data, the Bill of Lading draft can hold carriage-facing fields, and the Certificate of Origin draft can capture origin information. The final set should be reconciled before submission or release.

Using an SLI as an export document control point

For a growing export business, the value of an SLI is not just the finished page. It can act as a small control point between sales, warehouse, documentation and logistics. Sales can confirm the buyer and commercial reference, the warehouse can confirm packages and weights, and the logistics team can confirm routing and forwarder instructions. When these teams use the same shipment reference, the final document pack is easier to trace.

For repeat shipments, you can also use the structure of this generator as a checklist for your internal SOP. Save a copy of the completed draft with the quotation, purchase order, invoice, packing list, booking confirmation and transport-document draft. This creates a simple shipment file that can be reviewed before cargo handover. The SLI should never replace the documents or systems actually required for the shipment; it is a practical bridge between the exporter and logistics provider.

One especially useful habit is to review changed fields after packing. If the number of cartons, gross weight, dimensions or container details changed, update the relevant documents together rather than correcting only one file. Your Freight Quote Comparison Calculator can also help when a revised cargo profile changes the all-in shipping estimate. For air cargo, compare the result with the Air Freight Cost Calculator and Air vs Sea Freight Calculator before finalizing transport instructions.

Before dispatch, treat the SLI as a final instruction sheet: compare the parties, route, Incoterm, cargo quantity, package count, weights, insurance request and document list one last time. A two-minute reconciliation can prevent a much longer correction cycle after booking or handover.

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