How to Confirm Factory's Export Documentation Before Shipping

TL;DR

Documentation errors cause up to 70% of export delays, and a single mismatched carton count can hold your freight at the port for weeks. To confirm your factory’s export documentation before shipping, you need to cross-check every document against the others using a systematic method, verify timing at three production milestones, and catch footwear-specific requirements (like HS Chapter 64 codes and US Interim Footwear Invoices) that most general guides ignore. This article walks through the full verification process, document by document, field by field.

Somewhere between your factory floor in Guangdong and a customs terminal in Los Angeles, a single wrong number on a packing list can cost you thousands. Research by Peerless Media found that 63% of businesses have experienced shipments delayed at the border, and 47% of the time, the cause was incomplete or missing paperwork. Other industry data suggests that documentation problems account for up to 70% of all export delays.

These are not theoretical risks. One forum user on AnandTech recounted their first China import experience: “All in all, not bad for the first time, we only incurred a $150 penalty for a late filing of one of the forms.” That was a lucky outcome. More often, a mismatched address or weight discrepancy parks your container at the port while demurrage fees climb for five days to two weeks.

This guide is written for importers and buyers who source from overseas factories, especially those working with footwear manufacturers. It covers every core export document, explains exactly what to verify on each one, and gives you the cross-checking framework that most “export document lists” skip entirely.

Browse sample styles from a factory that provides complete export documentation per shipment.

Core Export Documents: What Each One Is and What to Verify

Most guides simply list the documents you need. That is not enough. You need to know who creates each document, what it contains, and what specific fields to verify before your goods leave the factory. Here is every document that matters, with confirmation notes for each.

Proforma Invoice

What it is: A formal quote sent to you before goods ship. It outlines the proposed transaction so you can arrange financing, open a letter of credit, or obtain import licenses.

Who creates it: The factory/exporter.

What to confirm: Verify that the product descriptions, unit prices, quantities, Incoterms, and payment terms match your purchase order exactly. The proforma invoice becomes the blueprint for every document that follows. If errors creep in here, they cascade through the commercial invoice, packing list, and beyond.

Commercial Invoice

What it is: The most important export document in the bundle. Customs authorities use it to determine the value of your shipment, calculate duties and taxes, and verify transaction details.

Who creates it: The factory/exporter.

What to confirm: Check the declared value per unit and total, the product descriptions (specific, not vague), the buyer and seller names and addresses, the Incoterms, and the invoice number. This number gets referenced on nearly every other document, so it must be consistent. Also confirm the currency. A commercial invoice stating “USD” while your letter of credit specifies “EUR” will trigger a bank discrepancy.

Packing List

What it is: The contents document. It states quantities, the number of packages, net and gross weights, and dimensions. It carries no prices.

Who creates it: The factory’s warehouse team.

What to confirm: Compare carton count, gross weight, net weight, and total quantity against the commercial invoice. If the commercial invoice says 100 cartons but the packing list says 96, customs or the consignee will request clarification, and your shipment stalls. Missing net weight is another common trigger: many customs authorities compute duty on net weight, and its absence forces manual review.

Bill of Lading (B/L) or Air Waybill

What it is: The transport contract issued by the carrier. For ocean freight, you may need an inland bill of lading to move goods to the port and a separate ocean bill of lading for export.

Who creates it: The shipping carrier or freight forwarder.

What to confirm: Check the consignee name and address (must match the commercial invoice exactly), the shipper details, the port of loading and discharge, the container number, the gross weight, and the number of packages. A consignee name spelled differently on the B/L versus the commercial invoice is one of the most common reasons cargo ends up in customs holds.

Certificate of Origin (CO)

What it is: This document confirms where the goods were manufactured. Many countries use it to determine duty rates or apply preferential tariffs under trade agreements.

Who creates it: The exporter, often certified by a chamber of commerce or government agency.

What to confirm: Verify that the factory entity listed matches the actual manufacturer. If you are working with a trading company that sources from a different factory, the CO must still accurately reflect the country of manufacture. Also confirm the product description and HS code match your other documents.

Export Declaration

What it is: Most countries require exporters to file an export declaration for compliance and trade statistics. In China, this is handled by the exporter or their customs broker.

Who creates it: The exporter’s customs broker.

What to confirm: Ensure the HS codes, quantities, and values match the commercial invoice. Filing late or submitting incorrect data can prevent cargo from being loaded onto the vessel.

HS Code / Tariff Classification

What it is: The Harmonized System code assigned to your product. Virtually every country determines import duties based on these codes.

Why it matters for footwear: Footwear falls under HS Chapter 64, with classification depending on outer-sole material and upper material. A cork double-buckle sandal with a leather upper gets a different code than the same sandal with a PU upper. Writing the HS code incorrectly leads to miscalculated tariffs, potential penalties, and delays.

What to confirm: Cross-reference the HS code against the actual material composition of your product. Ask your factory for the specific 6-digit (international) or 10-digit (US HTS) code and verify it independently. Do not accept a generic “6402” when your product’s upper material demands a different subheading.

Interim Footwear Invoice (IFI) / Footwear Declaration

What it is: A US-specific document. CBP requires a footwear declaration that provides specific details on the shoes being imported, including upper material, outer-sole material, whether the shoe is waterproof, and the intended wearer (men’s, women’s, children’s).

Who creates it: Typically prepared by the importer or their customs broker, but the factory must supply the material composition data.

What to confirm: Verify that every material percentage matches the actual construction of the shoe. If your factory used a different adhesive or changed the outsole compound after sampling, the IFI needs to reflect that. This is where having a mandatory signed sample before mass production pays off, because it locks in the material specs that feed into this declaration.

Inspection Certificates

What they are: Third-party or factory-issued reports confirming product quality, often including AQL sampling results, dimensional checks, and visual defect tallies.

What to confirm: Ensure the inspection date is after production completion (not during), the sample size matches the agreed AQL level, and the product descriptions match your order. For more on catching problems before they reach the port, see this guide on reducing defective shoe arrivals.

The Cross-Check Method: What Must Match Across Documents

Here is the insight that most guides miss entirely. Each document in your export bundle is authored by a different party at a different moment. The exporter writes the commercial invoice. The warehouse team builds the packing list. The carrier issues the bill of lading. Three independent authors describing the same shipment should agree. When they do not, customs has to treat both possibilities seriously, which is why discrepancies produce holds.

This is the “three-author rule,” and it is the foundation of how to confirm factory’s export documentation before shipping.

Fields That Must Align

Use one product description across every document. “Women’s PU upper cork-sole slide sandals” on the invoice should not become “ladies’ footwear” on the bill of lading.

The Density Sanity Check

Customs officers perform a calculation most importers never think about. They compare the commercial invoice value against the packing list CBM (cubic meters). If 40 CBM of cargo is invoiced at just $2,000, they flag it as potential under-invoicing. Make sure your declared values are realistic relative to the volume and weight of your shipment.

Common Mismatch Examples

A gross weight of 14,200 kg on the packing list but 14,020 kg on the bill of lading. A one-digit transposition, maybe just a typo, but enough for US CBP to put a hold on your freight. In 2025, CBP enhanced its ACE system with AI-powered cross-referencing that compares the commercial invoice, packing list, and bill of lading in real time before a human officer ever touches the file. The margin for “close enough” has shrunk to zero.

When to Verify: Timing Your Document Review

The biggest mistake importers make is treating paperwork as an afterthought, something to deal with once goods are packed and ready to load. Experienced practitioners treat document preparation as part of manufacturing itself.

Stage 1: Deposit and Proforma Confirmation

When you pay your deposit (typically 30% for standard orders, sometimes 50% for first-time cooperation or higher-risk destinations), confirm the proforma invoice in detail. This is where you lock in:

• Product descriptions that will flow through to every subsequent document
• Incoterms (FOB, CIF, etc.) that determine who is responsible for which documents
• Payment currency
• HS code classification

Errors caught here cost nothing to fix. Errors caught at the port cost everything.

Stage 2: Mid-Production Verification

During production is when you verify labeling specs, packaging standards, and material declarations. If your factory provides mid-production QC images and video, use that checkpoint to confirm:

• Care labels match destination-country requirements (US FTC, EU regulations)
• Country-of-origin markings are correctly applied
• Material composition records align with what will appear on the Interim Footwear Invoice or EU labeling

Stage 3: Pre-Shipment Balance Payment

Before you pay the remaining balance, request draft versions of the commercial invoice, packing list, and certificate of origin. This is your last opportunity to cross-check everything using the three-author rule before the carrier issues the bill of lading.

Run through the full cross-check table above. Compare every field. If anything does not match, stop. Get it corrected before you wire the balance.

Stage 4: 48 Hours Before Vessel Loading

For US ocean imports, the forwarder must file the Importer Security Filing (ISF) 24 hours before vessel departure. For Canadian sea shipments, the deadline is 48 hours before loading. This is also when you should run a final restricted-party screening to make sure nothing has changed on any denied or restricted party list since you started the order.

The safer rule is simple: final shipping documents should match the actual cargo, not just the original offer.

Market-Specific Requirements to Confirm

United States

Footwear Declaration (IFI): Required by CBP for all shoe imports. Must specify upper material, outer-sole material, waterproofing status, and intended wearer category.

HS Chapter 64: All footwear classifications live here. The subheading depends on material composition. A women’s wedge sandal with a textile upper and rubber sole gets a different rate than one with a leather upper. Get the classification wrong and you either overpay duties or face penalties for underpayment.

CPSIA for children’s shoes: If you import footwear intended for children 12 years or younger, CPSIA compliance requires lab testing, a tracking label, and a children’s product certificate. This is non-negotiable, and your factory needs to know about it before production, not after.

Country-of-origin marking: CBP requires clear “Made in [Country]” markings. Shoes are excluded from the FTC’s Care Labeling Rule, but origin marking is still mandatory.

Document retention: Under 19 CFR 163, you must retain commercial invoices and entry documents for five years.

For a broader look at footwear compliance across markets, see this US, EU, and UK rules checklist.

European Union

Mandatory footwear labeling (Directive 94/11/EC): If you sell shoes in the EU, your products must comply with labeling requirements covering upper material, lining material, and outer-sole material. Flat shoes, espadrilles, and sandals are explicitly listed. The organization that first places the product on the EU market assumes responsibility for label accuracy.

REACH compliance: EU REACH regulations apply to chemicals in footwear materials. Your factory must be able to provide material safety data or test reports confirming compliance, particularly for adhesives, dyes, and tanning agents.

EUR.1 movement certificate: If a free trade agreement applies between the country of manufacture and the EU, an EUR.1 certificate can qualify your goods for preferential tariff rates.

Other Markets

Canada, Australia, South Africa, and Brazil each have their own customs documentation requirements. The core documents (commercial invoice, packing list, B/L, CO) are universal, but specific labeling rules and import permits vary. Always confirm destination-country requirements before your factory finalizes packaging and documentation.

Red Flags That Signal Document Problems

Knowing how to confirm factory’s export documentation before shipping also means knowing when something feels wrong. Watch for these warning signs:

Factory reluctant to share draft documents. If your supplier will not send you a draft commercial invoice or packing list before shipping, that is a serious problem. Transparent factories build document review into their process. Factories that resist may be hiding errors or inconsistencies.

Round-number weights that do not match piece-count math. If you ordered 1,200 pairs of sandals and the packing list shows exactly 1,000 kg gross weight, do the math. Multiply your per-pair weight by the quantity and add packaging weight. Suspiciously round numbers often indicate estimates rather than actual measurements.

Generic product descriptions. “Footwear” is not a product description. Your documents should say something like “women’s PU upper cork-sole slide sandals, style #LR2024-08.” Vague descriptions fail customs requirements and can trigger classification disputes.

HS codes that do not match material composition. If your sandal has a textile upper but the HS code indicates leather, someone either guessed or copied from a previous shipment. This single error can change your duty rate by several percentage points.

Certificate of origin listing the wrong entity. If you are buying from a trading company but the CO lists a factory name you have never heard of, ask questions. The CO must accurately reflect the manufacturing origin.

How a Transparent Factory Simplifies Verification

The difficulty of confirming factory export documentation before shipping varies enormously depending on who you source from. A factory with structured quality control checkpoints creates natural windows for document verification. One that treats paperwork as an afterthought leaves you scrambling at the last minute.

What to look for in a factory partner:

Three-stage QC with documentation at each stage. Raw material inspection catches labeling and material issues early. Mid-production QC with images and video lets you verify packaging specs before they are sealed in cartons. Pre-loading inspection reports, paired with final documentation, give you one last confirmation that physical goods match the paperwork.

Complete invoices and certificates per shipment. Factories familiar with Western market requirements (US care labels, EU materials rules, BSCI-audited facilities) produce documentation that customs officers expect to see, reducing the likelihood of holds and manual reviews.

Mandatory sample approval before mass production. When a factory requires a physical signed sample before production begins, it locks in the material composition, construction details, and specifications that feed directly into your HS code classification, IFI, and EU labeling. Learn more about documenting signed samples to prevent disputes.

Deposit-gated checkpoints. Payment structures that require a deposit before production and balance before shipment create two natural moments where you can (and should) review documents. The deposit stage confirms the proforma invoice. The balance stage triggers the final cross-check of all shipping documents.

Factories that build these steps into their workflow do most of the verification work for you. The ones that do not leave you exposed.

Request a quote and see the full document package LR Shoes Custom prepares for every shipment.

Quick-Reference Verification Checklist

Use this checklist before every shipment. Print it, share it with your freight forwarder, and do not release the final balance payment until every box is checked.

Commercial Invoice

• [ ] Buyer and seller names/addresses match B/L and purchase order
• [ ] Product descriptions are specific (not generic)
• [ ] Unit prices and total value match proforma invoice
• [ ] Invoice number is present and referenced on packing list
• [ ] Incoterms stated and correct
• [ ] Currency matches letter of credit or payment agreement
• [ ] HS code matches product material composition

Packing List

• [ ] Carton count matches commercial invoice
• [ ] Gross weight matches B/L
• [ ] Net weight is included (not omitted)
• [ ] Total quantity matches commercial invoice
• [ ] Dimensions/CBM are realistic for the declared value

Bill of Lading

• [ ] Consignee name and address match commercial invoice exactly
• [ ] Shipper details are correct
• [ ] Port of loading and discharge are correct
• [ ] Container number is present
• [ ] Gross weight and package count match packing list
• [ ] “Shipped on board” date is present for L/C compliance

Certificate of Origin

• [ ] Manufacturing country is correct
• [ ] Factory entity matches actual manufacturer
• [ ] Product description matches commercial invoice
• [ ] Properly certified (chamber of commerce stamp if required)

HS Code / Tariff Classification

• [ ] Code matches upper material, outer-sole material, and construction
• [ ] Code is 6-digit minimum (10-digit for US HTS)
• [ ] Code matches across commercial invoice, CO, and export declaration

Footwear-Specific (US)

• [ ] Interim Footwear Invoice completed with accurate material percentages
• [ ] CPSIA documentation if children’s footwear
• [ ] Country-of-origin marking confirmed on product

Footwear-Specific (EU)

• [ ] Directive 94/11/EC labeling on product (upper, lining, outer sole)
• [ ] REACH compliance documentation available
• [ ] EUR.1 certificate if FTA applies

Timing

• [ ] Proforma invoice confirmed at deposit stage
• [ ] Labeling/packaging specs verified during mid-production
• [ ] All shipping documents cross-checked before balance payment
• [ ] ISF filed 24 hours before vessel departure (US ocean)
• [ ] Final restricted-party screening completed

Frequently Asked Questions

What is the most important export document to verify before shipping?

The commercial invoice. Customs authorities worldwide use it to determine shipment value, calculate duties, and verify transaction details. Every other document references it, so errors here cascade through the entire bundle.

How far in advance should I review export documents?

Start at the proforma invoice stage (when you pay the deposit) and continue through mid-production and pre-shipment. Your final cross-check should happen before you pay the remaining balance, not after goods are loaded. For US ocean imports, the ISF must be filed 24 hours before vessel departure.

What happens if the packing list and bill of lading show different weights?

Even a small discrepancy, like 14,200 kg versus 14,020 kg, can trigger a customs hold. CBP’s AI-powered ACE system now cross-references these documents in real time. The shipment gets flagged, parked at the port, and you pay demurrage fees until the discrepancy is resolved.

Do I need a separate footwear declaration for US imports?

Yes. CBP requires an Interim Footwear Invoice (IFI) that specifies upper material, outer-sole material, waterproofing status, and intended wearer category. Your factory must supply the material composition data to complete this form accurately.

Who is responsible for preparing export documents, the buyer or the factory?

It depends on the Incoterms. Under FOB terms (common in China sourcing), the factory prepares the commercial invoice, packing list, and certificate of origin. The buyer’s freight forwarder handles the bill of lading and ISF filing. Regardless of who prepares them, the buyer should always verify every document.

How do I verify HS codes for footwear?

Footwear falls under HS Chapter 64. Classification depends on the outer-sole material and upper material. Cross-reference the code your factory provides against the US Harmonized Tariff Schedule or your destination country’s equivalent. Do not accept a code copied from a previous, different product.

Can document errors really cost that much?

According to the International Trade Administration, errors in export documents lead to an average 15% increase in shipment delays globally. Clean shipments with complete, accurate paperwork often receive electronic release within 24 to 72 hours. Flagged shipments can sit in review for days to weeks, with demurrage fees accumulating the entire time.

What should I do if my factory refuses to share draft documents before shipping?

Treat this as a serious red flag. Reputable factories build document review into their workflow. If your current supplier will not share drafts, consider whether the relationship is worth the customs risk. Factories with structured QC checkpoints and export compliance experience, particularly those familiar with US and EU requirements, will proactively provide draft documentation for your review.

Get in touch with LR Shoes Custom to discuss your next order with full documentation support built into every production stage.