Before You Pay the Deposit: The Documents to Demand From a Display Supplier

1. Why the deposit is where your leverage ends

Before the deposit, you are a buyer with options and the supplier is competing for the order. After it, you are a buyer with sunk cost, and every request that was not written down becomes a negotiation you are paying to have. That is not bad faith on anyone's part. It is simply how the incentives change once production is scheduled.

The practical consequence is simple: the deposit should be the last step of the paperwork, not the first. On a standard configuration the lead time is roughly 15 to 25 working days and on an OEM build it is 30 to 45, so the documents below cost you a couple of days at most and remove most of the disputes that cost weeks later. That holds whether the order is one 3.5 mm bezel LCD video wall or a container of indoor panels.

2. Seven documents to hold before the money moves

None of these are exotic. All seven are things a competent supplier produces routinely, which is exactly why a refusal to produce one is a signal.

• A configuration-locked quotation. Model, size, resolution, brightness, operating system, interface set, and the exact options included, with a validity date.
• Proforma invoice. The document your bank and your finance team will actually process, and the one that fixes price, currency, quantity and Incoterms.
• Certificate pack with the holder named. The files for the market you are importing into, showing who holds the certificate and which models it covers.
• Warranty terms as a separate document. Not a line in the quote. Period, start trigger, covered subassemblies, repair path, spares availability.
• Inspection agreement. The standard you will inspect against, the AQL, and what happens if the batch fails.
• Sample approval record. For any OEM work, a signed confirmation of the approved sample, including photos and the serial number of the unit you approved.
• Purchase order or contract with payment milestones. What triggers each payment, and what documents the supplier must supply to trigger it.

Two of these are worth arguing about early because they are the ones that get quietly dropped. The warranty terms as a separate document is the first: suppliers prefer a single line on the quote, and a single line has no start trigger, no repair path and no spares commitment in it. The inspection agreement is the second, because agreeing a standard before production means you have something to inspect against, and agreeing it after means you are negotiating with a finished container.

A supplier who has shipped to your market before will hand these over without argument. A supplier who stalls on the inspection agreement specifically is telling you something about how the batch will look.

3. What each document has to say

The value is in the fields, not in the existence of the document. These are the ones that get checked too late.

• Quotation: every option priced separately, so a later change order can be costed against something. A single lump sum gives you nothing to negotiate against.
• Proforma invoice: beneficiary name identical to the company on the quotation and on the certificate, currency stated, Incoterms 2020 rule named explicitly (EXW, FOB, CIF or DAP decide who carries the risk and where), and a validity window.
• Certificates: holder name, model scope, issue date and validity. A certificate held by a different legal entity than the one invoicing you is not your certificate.
• Warranty: start trigger and repair path, both named. These two clauses decide more than the number of years.
• Inspection agreement: the standard (ISO 2859-1 or equivalent), the AQL level, the sample size logic, and the remedy if the batch fails: rework, replacement, or price adjustment.
• Sample approval: a dated record identifying the exact unit, so a production unit that differs from the sample is a documented deviation rather than an opinion.
• Contract: milestone triggers written as documents, not dates. Payment becomes due on presentation of a named document, not on a calendar estimate.

4. A payment structure that keeps some leverage

The common structure in this industry is a deposit of around 30% with the balance of around 70% payable against a copy of the bill of lading. It works because it splits risk sensibly: the supplier is covered for materials and production, and you still hold most of the money until there is proof the goods exist and have shipped.

For a first order with an unfamiliar supplier, there are two adjustments worth asking for. The first is to make part of the balance conditional on inspection passing rather than on shipment, which is the version that actually protects you. The second is a letter of credit at sight, which costs more in bank fees and substitutes the bank's document check for your own. Both are easier to agree before the deposit than after.

Whatever structure you agree, the balance should be tied to a document. Payment on a date gives the supplier no reason to produce anything; payment on a bill of lading copy, an inspection report, or a certificate of origin gives you a file you can use if the goods are wrong.

5. Documents after the deposit and before the shipment

The second tranche is shorter and largely procedural, but two of these are what you will need if anything goes wrong in transit or at customs.

• Inspection report, with the serial numbers of the units checked and photographs of the packing
• Bill of lading or airway bill, with consignee details matching your import records
• Packing list with per-carton serial numbers, which is what turns a shortage into a claim rather than an argument
• Commercial invoice matching the proforma invoice, with the same currency and Incoterms
• Certificate of origin where your market requires it for duty treatment
• Insurance policy where the terms put the risk on you, which depends on the Incoterms rule you agreed
• Test report or certificate of conformity per batch, if your market or your own QA needs it

Serial numbers are the thread that ties this together. If the packing list, the inspection report and the warranty registration all carry the same serials, a claim two years later is administrative. If they do not, it is a debate. On a fleet of indoor screens bought off a wall-mount signage line, the serial is what connects a unit to its configuration, its warranty start date and its spare parts list.

6. Where these deals actually go wrong

The failures are rarely dramatic. They are small mismatches that become expensive because nobody checked a field.

• Beneficiary name does not match the seller. The single most common serious problem. Paying a different legal entity than the one that quoted is close to unrecoverable if anything goes wrong.
• A request to pay a personal account. No legitimate manufacturer needs this. It is either a trader hiding the factory or worse, and either way the answer is no.
• Incoterms missing or vague. Without a named rule, nobody knows who pays for inland haulage, export clearance or insurance until the invoice arrives with extras on it.
• Currency and validity unstated. A quote without an expiry and a currency is not a price. It is an opening position.
• Configuration drift after the deposit. The panel or board changes and the buyer is told it is equivalent. This is what the configuration-locked quotation and the sample approval record exist to prevent.
• Change order pricing with no baseline. Which is why every option on the first quote should be priced separately.

Configuration drift deserves a specific example, because it is the one that costs the most and is hardest to prove. On a sealed outdoor product the substitution risk is not the panel on its own, it is the thermal path, the gasket set and the ingress rating around it. That is why the locked quotation should name the model on the outdoor IP66 line rather than describing a generic 55 inch outdoor screen.

None of these are clever tricks, and none of them survive a buyer who asks for the document before the money rather than after.

7. What this article does not cover

This is about the paperwork and payment mechanics. It does not cover how to read a certificate or which marks your market requires, which is dealt with in the import compliance risk article. It does not cover working out whether the company invoicing you owns a factory, which is the subject of the OEM factory against trading company guide. And it does not cover what a warranty is worth once you have one, which is set out in the warranty and spare parts article. Read them in that order and the paperwork stops being the risky part of the deal.

Deposit-stage documents and what to check

Document	Why it must come before the deposit	Field that decides it	If the supplier will not issue it
Configuration-locked quotation	Fixes what you are buying before you pay for it	Options priced separately, with a validity date	Every later change becomes unpriced
Proforma invoice	What your bank and finance team process	Beneficiary name identical to the seller	Payment risk that is hard to recover
Certificate pack	Needed for import and for resale	Holder name and model scope	Customs and marketplace exposure
Warranty terms	Becomes unnegotiable once production starts	Start trigger and repair path	Cover defined by the supplier, later
Inspection agreement	Ties money to a standard rather than a promise	Standard, AQL and remedy on failure	No basis to reject a bad batch
Sample approval record	Defines equivalence for OEM builds	Dated record with the approved unit serial	Configuration drift with no evidence
Contract with milestones	Turns dates into documents	Payment triggered by a named document	Balance due whether or not the goods are right

Frequently Asked Questions

Related decision guides: how to evaluate OEM/ODM capability for commercial displays and 3000 nits vs 5000 nits window displays.