# B2B Supplier Hub > Verified B2B wholesale supplier discovery for Amazon sellers — live stock, > pricing, MOQ, and authorization for thousands of products in one place. ## Blog Sourcing playbooks and wholesale strategy for Amazon FBA sellers. - [How to Check If a Brand Is Gated on Amazon (3 Free Methods)](https://b2bsupplierhub.com/blog/check-if-brand-is-gated-amazon): Three free ways to check if a brand is gated on Amazon in 2026: the Seller Central listing check, the Seller app scan, and the apply-to-sell probe. Plus why gating differs by account and what each result means. - [Amazon Q4 Storage Fees 2026: Planning Guide for Wholesale Sellers](https://b2bsupplierhub.com/blog/amazon-q4-storage-fees): Amazon FBA storage fees roughly triple from October through December 2026. The current rates, the surcharges that stack on top, and how wholesale sellers should size and time Q4 orders around them. - [What Counts as a Valid Wholesale Invoice for Amazon (With Examples)](https://b2bsupplierhub.com/blog/what-is-a-valid-wholesale-invoice): What Amazon actually accepts as a wholesale invoice: the elements reviewers check, a worked example of an invoice that passes, and the three documents sellers submit that get denied every time. - [How to Audit Your Supplier Base Once a Quarter](https://b2bsupplierhub.com/blog/quarterly-supplier-audit): Supplier problems build slowly: a price bump here, a short shipment there, nothing worth stopping for on a normal Tuesday. A 90-minute quarterly audit catches them while they're still a phone call to fix. - [6 Seller Assistant Alternatives for Wholesale Sellers (2026)](https://b2bsupplierhub.com/blog/seller-assistant-alternatives): Six honest Seller Assistant alternatives for Amazon wholesale sellers in 2026, compared by what each actually does best: supplier discovery, bulk list scanning, brand research, and fast product checks. - [7 Best Wholesale Sourcing Tools for Amazon Sellers (2026)](https://b2bsupplierhub.com/blog/blogbest-wholesale-sourcing-software-amazon-sellers): Sourcing tool" means five different things. Here's what 7 wholesale sourcing tools for Amazon sellers actually do in 2026, and how to pick the right one. - [Q4 Sourcing Timeline for Amazon Wholesale: Order Dates That Matter (2026)](https://b2bsupplierhub.com/blog/q4-sourcing-timeline-amazon): The month-by-month Q4 sourcing timeline for Amazon wholesale sellers in 2026: when to place orders, the FBA inbound windows that matter for Black Friday and Christmas, and what to do in August, September, and October. - [Amazon Ungating Invoice Requirements (2026): What Passes](https://b2bsupplierhub.com/blog/amazon-ungating-invoice-requirements): Your invoice is real, your product is sealed, and Amazon rejected it anyway. The 7-point spec that passes automated review, and how to escalate. - [How to Get Ungated on Amazon in 2026 (Category & Brand Ungating)](https://b2bsupplierhub.com/blog/how-to-get-ungated-on-amazon): The exact process for getting ungated on Amazon in 2026: how to check if you're gated, the invoice requirements Amazon accepts, where to buy your ungating units, and how to reapply after a denial. - [UPC, EAN, ASIN, MPN Explained: A Reseller's Guide (2026)](https://b2bsupplierhub.com/blog/upc-ean-asin-mpn-explained): Every product you sell carries at least four different codes, and they don't match each other. What UPC, EAN, ASIN, and MPN each mean, and how resellers actually use them. - [Free Tier Explained: What You Get Without Paying Anything](https://b2bsupplierhub.com/blog/free-tier-explained): Unlimited wholesale product search with exact cost, live stock, and retail price on every result — no card required. What the B2B Supplier Hub free tier includes, what it doesn't, and when upgrading actually makes sense. - [What B2B Supplier Hub Can and Can't Do: An Honest FAQ](https://b2bsupplierhub.com/blog/honest-faq): Most FAQ pages are sales pages with question marks. This one answers the real questions about B2B Supplier Hub, including the uncomfortable ones. - [How Watchlists Work on B2B Supplier Hub: Price and Restock Alerts ](https://b2bsupplierhub.com/blog/how-watchlists-work): Set a target price and a restock level and get an email the moment a product's numbers move. How watchlists work on B2B Supplier Hub, free on every plan. - [How Do Reveals Work on B2B Supplier Hub? Credits, Permanence, and the 60-Day Refund](https://b2bsupplierhub.com/blog/how-reveals-work): Everything on B2B Supplier Hub is free except one click. What a reveal buys, why it's permanent, and how the 60-day refund protects the credit. - [How to Evaluate a Supplier From the Numbers Alone](https://b2bsupplierhub.com/blog/evaluate-supplier-numbers-alone): Cost spread, stock depth, and last-updated dates tell you more than price. Learn to read a masked supplier listing before you spend a reveal credit. - [Reverse Sourcing on B2B Supplier Hub: One Product, Start to Finish](https://b2bsupplierhub.com/blog/reverse-sourcing-walkthrough): A real reverse sourcing session: one processor, ten suppliers found, margin modeled, one revealed and three watchlisted, all in a few minutes. - [How Does B2B Supplier Hub Work? From First Search to Supplier Contact](https://b2bsupplierhub.com/blog/how-b2b-supplier-hub-works): How B2B Supplier Hub works in 5 steps: sign up free, search any product, compare wholesale suppliers' cost & live-stock side by side, then reveal and connect. - [B2B Supplier Hub Chrome Extension: Find Suppliers on Amazon](https://b2bsupplierhub.com/blog/b2b-supplier-hub-chrome-extension): The B2B Supplier Hub Chrome extension shows how many suppliers carry a product, the lowest wholesale price, and stock, right on the Amazon page. - [Introducing B2B Supplier Hub: A Sourcing Platform for Wholesale Resellers](https://b2bsupplierhub.com/blog/what-is-b2b-supplier-hub): Supplier directories charge for names upfront. B2B Supplier Hub inverts that: see every number free, pay only when you're ready to reveal a supplier. - [Resale Certificate vs. Sales Tax Permit: What Distributors Actually Require (2026) ](https://b2bsupplierhub.com/blog/resale-certificate-vs-sales-tax-permit): Most distributor applications stall over paperwork, not qualifications. Learn the two documents distributors require and how to get both right the first time - [How to Work With a New Wholesale Distributor: Your First 30 Days After Approval](https://b2bsupplierhub.com/blog/first-30-days-new-wholesale-distributor): Approval is not the finish line. Here is exactly what to do in your first 30 days with a new wholesale distributor.  - [The Safest Ways to Pay Wholesale Suppliers: Wire vs ACH vs Card vs Net Terms ](https://b2bsupplierhub.com/blog/safest-ways-to-pay-wholesale-suppliers): The payment method distributors prefer most is the one that protects you least. When to wire, when to use a card, and the red flags that should stop any payment. - [How to Onboard a New Wholesale Supplier in 90 Days](https://b2bsupplierhub.com/blog/onboard-new-wholesale-supplier-90-days): Getting approved is not the same as being ready to scale. Here's a 90 day framework for onboarding a new wholesale supplier the right way. - [How to Reapply to a Wholesale Distributor After Rejection](https://b2bsupplierhub.com/blog/reapply-wholesale-distributor-after-rejection): Rejected by a distributor? Most rejections are not final. Learn how to decode the no, fix your application, and reapply the right way, with an email template. - [The Economics of MOQ: When Bigger Orders Hurt Margin ](https://b2bsupplierhub.com/blog/economics-of-moq-bigger-orders-hurt-margin): A lower unit price doesn't always mean better margin. See when a bigger MOQ actually costs more once storage and cash flow are factored in. - [How to Test a Wholesale Supplier's Operational Reliability Before Your First Big Order](https://b2bsupplierhub.com/blog/test-wholesale-supplier-reliability): Verification proves a supplier is real. It doesn't prove they can deliver. Here's how to test a supplier's fill rate, ETA accuracy, communication, paperwork, and problem handling with one small order, before you bet a five-figure PO on them. - [Why Single-Supplier Dependency Kills Wholesale Businesses](https://b2bsupplierhub.com/blog/why-single-supplier-dependency-kills-wholesale-businesses): One supplier email can end your best-selling product overnight. Learn why single-supplier dependency is the most common cause of wholesale business failure and what to do before it happens to you. - [How to Read a Distributor Price Sheet: Pricing Tiers and Quantity Breaks Explained ](https://b2bsupplierhub.com/blog/how-to-read-a-distributor-price-sheet): A new distributor's prices look too high? You are probably on their lowest tier. Here is how to read the sheet, spot the real cost, and earn better pricing - [How to Negotiate Wholesale Pricing Without Burning the Relationship](https://b2bsupplierhub.com/blog/how-to-negotiate-wholesale-pricing-without-burning-relationship): Learn how to negotiate wholesale pricing the right way. When to ask, what to ask for, and how to push for better terms without damaging the distributor relationship, you need to keep growing. - [How to Build a Three-Supplier Bench for Your Top Amazon SKUs ](https://b2bsupplierhub.com/blog/building-three-supplier-bench-for-top-amazon-skus): Your best SKU probably depends on one supplier, and that's a single point of failure. Here's how to build a three-supplier bench: a primary for volume, a secondary kept warm, and an emergency source approved before you need it. - [Why Wholesale Distribution Is the Last Industry to Digitize](https://b2bsupplierhub.com/blog/why-wholesale-distribution-is-the-last-industry-to-digitize): Distributors run robotic warehouses but still email PDF price lists. The five structural reasons wholesale stayed analog, and why it is finally changing. - [What Distributors Look For Before Approving an Amazon Seller (2026 Guide) ](https://b2bsupplierhub.com/blog/what-distributors-look-for-before-approving-amazon-seller): Distributors typically verify your business entity, EIN, resale certificate, and business history. Beyond documents, they assess your expected order volume, how you plan to sell (including which channels), your knowledge of the brand and its pricing policies, and the professionalism of your first contact. The evaluation is as much about fit and risk as it is about paperwork. - [Questions to Ask a Wholesale Distributor Before Your First Order (Amazon Seller Guide)](https://b2bsupplierhub.com/blog/questions-to-ask-wholesale-distributor-before-first-order): The questions every Amazon wholesale seller should ask a distributor before placing a first order—covering landed cost, invoice quality, MAP policies, stock reliability, and lead times. - [How to Compare Wholesale Suppliers: A Step-by-Step Framework](https://b2bsupplierhub.com/blog/how-to-compare-wholesale-suppliers-a-step-by-step-framework): The cheapest supplier quote is often the most expensive one you'll accept. This framework shows you how to compare wholesale suppliers on the 7 factors that actually decide your margin. - [How to Find the Authorized Distributors for Any Brand (2026 Step-by-Step Guide)](https://b2bsupplierhub.com/blog/how-to-find-authorized-distributors-for-any-brand): Most sellers hunt for distributors in directories and end up with middlemen. The faster path starts with the brand itself. Here's the exact sequence. - [Brand Authorization Tiers Explained: How Close to the Brand Are You Really?](https://b2bsupplierhub.com/blog/brand-authorization-tiers-explained-how-close-to-the-brand-are-you-really): A genuine product can still get your Amazon listing rejected. How far up the supply chain you bought decides whether your invoice clears. Here's how authorization tiers really work in 2026. - [The Reseller's Guide to MAP Pricing and Authorization: What Amazon Sellers Need to Know (2026)](https://b2bsupplierhub.com/blog/map-pricing-authorization-amazon-resellers): Most resellers treat MAP as a constraint. The ones who last treat it as a credential. How MAP pricing and authorization really work on Amazon in 2026. - [Reverse Sourcing for Amazon Sellers: The 5-Step Workflow (2026 Guide)](https://b2bsupplierhub.com/blog/reverse-sourcing-for-amazon-sellers): Reverse sourcing starts with a product that already sells, then finds every authorized distributor who carries it. The 2026 workflow, and where it breaks. - [Authorized Distributor vs Middleman vs Gray Market: What It Means for Your Amazon Account (2026) ](https://b2bsupplierhub.com/blog/authorized-distributor-vs-middleman-vs-gray-market-amazon): A genuine product can still get your Amazon listing pulled. Here's the real difference between authorized distributors, middlemen, and gray-market suppliers, and what each means for your invoices, account health, and reselling rights in 2026. - [How to Verify a Wholesale Supplier Before You Wire Money (Red Flags + Checklist) ](https://b2bsupplierhub.com/blog/verify-wholesale-supplier-before-wiring-money): Before you wire money to a new wholesale supplier, learn how to verify them. The red flags that reveal a fake or unauthorized distributor, why your payment method decides whether a mistake can be undone, and a pre-wire checklist you can run in under an hour. - [How to Get Approved by Wholesale Distributors as an Amazon Seller in 2026](https://b2bsupplierhub.com/blog/get-approved-wholesale-distributors-amazon-seller): Discover why wholesale distributors reject Amazon sellers, and how to fix it. Learn what paperwork, order signals, and professionalism get you approved, avoid the three-gate trap, and build a recovery plan if you're turned down - [How to Find Wholesale Suppliers for Amazon FBA in 2026](https://b2bsupplierhub.com/blog/find-wholesale-suppliers-fba): Finding a best-selling product takes an afternoon. Finding a real, credible supplier can take weeks. Here's the exact sourcing workflow for 2026 with a working example, vetting checklist, and the habits that save margin. ## Key pages - [Blog](https://b2bsupplierhub.com/blog): All articles - [About](https://b2bsupplierhub.com/about): What B2B Supplier Hub is and who it's for - [Sitemap](https://b2bsupplierhub.com/sitemap.xml)