Buying Wholesale for Amazon and Walmart: A Seller Checklist
Buying wholesale for Amazon or Walmart involves more than finding branded products at a discount. Before ordering, you need to confirm that your account can list the product, the documentation meets current requirements, the product identifiers match and the final margin works after all marketplace costs.
The central rule is simple: authentic inventory does not automatically create permission to sell every brand or product on every marketplace.
1. Check Listing Eligibility Before You Buy
Search the exact product inside your seller account. Do not rely only on a public product page or supplier statement.
Check whether:
- Your account can list the product
- The brand requires approval
- The category or subcategory is restricted
- The product is prohibited or subject to special rules
- Condition limitations apply
- The listing matches the exact UPC, GTIN, size, pack and version
Amazon explains that some brand-selling applications may request a purchase invoice or brand authorization letter in its official guide to selling branded products. Walmart tells applicants and sellers to review its prohibited-product and performance policies in its Marketplace registration guide.
Rules and account permissions can change. Recheck them when you are ready to order.
2. Confirm Brand and Sales-Channel Restrictions
A supplier may legitimately sell a product to you while the brand limits third-party marketplace sales. Those are separate issues.
Ask:
- Does the brand permit third-party sales on my intended channel?
- Does the supplier make any written representation about its relationship with the brand?
- Is a separate authorization letter required?
- Are there territory, pricing or advertising restrictions?
- Does the marketplace show an approval requirement in my account?
Do not advertise yourself as an authorized seller or distributor unless you have written evidence supporting that exact claim.
3. Review Invoice Requirements Before Ordering
If the marketplace may request purchase documents, your business information should be consistent across the seller account, wholesale account and invoice.
A professional invoice commonly includes:
- Supplier business name and address
- Buyer business name and address
- Invoice date and number
- Itemized product descriptions
- Units purchased
- Product identifiers where available
- Payment and shipping details
Amazon's published guidance for finding wholesalers states that approval documentation may include supplier information, itemized products, recent invoice dates and buyer information that matches the selling account. Requirements vary by product and can change, so review the exact prompt shown in Seller Central rather than relying on a blog, forum or supplier promise.
An invoice is evidence of a transaction. It is not a guarantee of marketplace approval.
4. Match the Exact Product Identifier
Compare the UPC or GTIN on:
- The supplier catalog
- The quote or invoice
- The physical product
- The marketplace listing
A small difference can indicate a different size, color, model, bundle or packaging version. GS1 defines a GTIN as a unique identifier for a trade item. That accuracy matters when matching inventory to an existing listing.
Do not create a customer-facing multipack by combining individual units unless the marketplace and brand rules allow it and the listing accurately represents what the customer receives.
5. Confirm Product Condition and Shelf Life
Marketplace customers expect the condition shown on the listing. Before buying, verify:
- New, used, refurbished, closeout or other condition
- Factory seals
- Packaging damage
- Lot codes and expiration dates
- Warranty implications
- Language or regional packaging
- Model year or version
- Included accessories
Grocery, beauty, health-related, battery, hazmat and other regulated or sensitive categories may require additional documentation, storage controls or approval. Do not assume a general wholesale account makes every category suitable for your marketplace business.
6. Calculate Marketplace Economics
Start with landed cost, then subtract every relevant selling expense.
Estimated contribution per unit = selling price - landed cost - referral fee - fulfillment cost - storage - prep - advertising - expected returns and discounts
Use current fee tools inside each marketplace. Do not copy fee estimates from an old spreadsheet.
Stress-test the order:
- What if the selling price falls by 10 percent?
- What if units sell more slowly than expected?
- What if storage or advertising costs increase?
- What if part of the inventory is unsellable?
- What if the listing becomes restricted after purchase?
A product with strong revenue can still produce weak cash flow or no profit.
7. Evaluate Demand and Competition
Review demand over time, not only a single rank or recent sales estimate. Look for:
- Stable customer demand
- Number and quality of competing offers
- Price history
- Buy Box or featured-offer dynamics
- Seasonal peaks
- Listing quality
- Review concentration
- Brand participation on the listing
Do not assume past sales guarantee future sell-through. Your own account health, price, fulfillment method and inventory condition affect results.
8. Choose a Fulfillment Plan Before the Order Arrives
Confirm whether inventory will go to your facility, a preparation partner, Amazon fulfillment or Walmart Fulfillment Services. Then check:
- Carton and pallet requirements
- Labeling
- Unit preparation
- Appointment or delivery rules
- Storage capacity
- Damage inspection
- Return handling
Do not claim that a wholesaler provides FBA or WFS preparation unless that service is explicitly included in written terms.
9. Keep Complete Purchase Records
Store:
- Account application records
- Quotes and purchase orders
- Final invoices
- Payment confirmation
- Shipping and delivery records
- Product photos
- Lot or serial information where relevant
- Supplier correspondence
- Brand authorization documents, if any
Organized records help you respond to accounting questions, damage claims, authenticity reviews or marketplace requests.
Marketplace Wholesale Buying Checklist
Before placing the order, confirm:
- My account can list the exact product
- Brand and category restrictions were checked
- UPC or GTIN matches the listing
- Supplier identity was verified
- Product condition is clear
- Case pack and MOQ are understood
- Invoice details match my business account
- Landed cost and current fees support the order
- Demand was tested conservatively
- Fulfillment and storage are planned
- Purchase records will be retained
Common Marketplace Buying Mistakes
- Buying first and checking eligibility later
- Assuming authenticity equals brand permission
- Treating a receipt as equivalent to every marketplace's invoice requirements
- Matching by product name instead of UPC or GTIN
- Ignoring packaging version or expiration
- Calculating profit before fulfillment, ads and returns
- Depending on a supplier's promise of approval
- Overbuying because a listing is currently selling well
Frequently Asked Questions
Can a wholesale supplier guarantee Amazon approval?
No. Amazon controls account, brand, category and product approvals. Review the current application shown in your seller account.
Can I use the same wholesale inventory on Amazon and Walmart?
Possibly, but each marketplace has separate listing, restriction, product and performance requirements. Verify the exact item on each platform.
What should a wholesale invoice include for a marketplace seller?
It should accurately identify the supplier, buyer, date, products and quantities. The marketplace determines whether a specific document meets its current requirements.
Apply for a Verified Business Account
2D Distribution serves qualified retailers, marketplace sellers, e-commerce businesses and resellers. Apply for wholesale access and tell us which categories fit your business.