Guides

A list of best selling KDP books tells you what already sold. It cannot tell you whether the category behind it is worth your next twelve months — and Amazon will not let you borrow the label anyway: its metadata guidelines forbid “Reference to sales rank (e.g., ‘bestselling’)” in a book’s title or keywords (KDP Help, Metadata Guidelines for Books, checked 2026-09-06). What you can do, free and without a tool subscription, is validate the category yourself, using the Best Sellers lists, the Best Sellers Rank on every detail page, the ratings count on each listing, and KDP’s own written rules for the three category slots and seven keyword slots you fill at title setup. This guide turns those into five pass/fail gates you run in order, stopping at the first failure. ...

If you are about to buy an Amazon FBA business, what decides whether the deal is safe is verification, not valuation. Four things must be independently checkable before money moves: that the profit reconciles to Amazon’s own reports, that the inventory is sellable rather than stranded and ageing, that the selling account can lawfully change hands, and that the trademark behind Brand Registry belongs to the party selling it to you. This is the buyer’s checklist for those four gates, built around documents and public pages you can pull yourself. ...

To put your Amazon items up for Vine orders you open the Vine tool in Seller Central, enter the ASIN, click Begin enrollment, add the variations you want included, set a unit count between 1 and 30, and confirm. Amazon’s help page for that flow states that “Once the enrollment is submitted, you will not be able to add/remove a product variation from the enrollment or update the quantity of units enrolled” (Enroll a product in Amazon Vine, data checked 2026-09-06). The job is getting the preconditions right before that last click. ...

The best-known list of top Amazon marketplace sellers is published by Marketplace Pulse, and it does not rank sellers by sales. It ranks them by how many seller reviews each storefront collected in the last 30 days. The page says so in its own words: “Seller rank is based on the number of reviews each seller received during the last 30 days, which counts feedback received from shoppers after a purchase” (data checked 2026-09-06). ...

The Amazon Merch on Demand size chart is not one size. Amazon organizes its templates by print dimension, and there are eleven of them — from 4500 x 5400 px for a standard t-shirt down to 850 x 75 px for a 12-pack of retractable pens. Every figure below comes from Amazon’s own Merch on Demand resource pages, read on 2026-09-05. One thing to settle before you open Photoshop: per-product exports used to be mandatory and are not any more. The dimensions still define what gets printed, but the upload no longer has to match them exactly — the detail most outdated guides miss, covered further down. ...

Buyers who search for how to contact an Amazon seller directly get three doors: the seller name on a product detail page, the order row in Your Orders, and the Buyer/Seller Messages tab of Message Center. All three land in the same place — the Buyer-Seller Messaging Service — and once a message is in there, Amazon expects a reply from you within 24 hours of receipt (Seller Central: Communication program policy, data checked 2026-09-05). That is the whole subject of this guide, read from the side that has to answer. ...

How to Export Amazon Listings to Excel: The All Listings Report Walkthrough To export your Amazon listing catalog to Excel, go to Reports → Inventory Reports in Seller Central, pick the All Listings report (or the Active Listings report if you only want live offers), click Request Report, wait 15 to 45 minutes, then download the file — Amazon delivers it as a tab-delimited .txt, not as a spreadsheet. Two things trip people up: picking a report from the wrong menu, and opening that .txt by double-clicking instead of running Excel’s import wizard, which silently mangles UPCs and ISBNs. This guide covers both, plus every column in the file. Data checked 2026-09-05 against Amazon’s Seller Central help pages. ...

To ship products from Amazon AWD back to seller-controlled addresses, you file a Multi-Channel Distribution (MCD) order, not an FBA removal order. The path is Seller Central > Supply Chain > Send to Amazon > Move from AWD, then the distribution type Multi-Channel Distribution (Off-Amazon Destinations) (data checked 2026-09-05, per Amazon’s Multi-Channel Distribution using Amazon Warehousing and Distribution (AWD) help page). If the SKU has no active listing, MCD refuses it and the only remaining route is a support case for manual removal. ...

A buyer submits seller feedback from Your Orders, or from the entry point amazon.com/hz/feedback that Amazon labels Leave Seller Feedback: find the order, rate the seller one to five stars, write a comment, submit. Two clocks govern it, both stated on Amazon’s help page: “It can take up to three days after the order is completed or canceled for the Leave seller feedback button to show in Your Orders,” and “You have 90 days from your order date to leave a rating and comments” (data checked 2026-09-05). ...

Amazon Business Reports: Find Your Conversion Bottleneck for Free Seller Central’s free Business Reports already tell you which step of your funnel is broken — you just have to read three columns in order. Sessions says whether shoppers reached the page. Buy Box Percentage says whether your offer was buyable when they got there. Unit Session Percentage says whether the page persuaded them. Whichever of the three moved is the step that broke; the other two are downstream noise. This guide walks the Sales Dashboard and the Detail Page Sales and Traffic report field by field, then ends with a table of the signals that mean the free reports are enough — and the signals that mean it is time to pay. ...

Amazon FBA Germany, Japan and the Netherlands: The Gates Each One Makes You Clear First Germany and the Netherlands are two doors into the same building. Japan is a different building. One EU EORI number covers both European countries — “at any point in time, a person can be assigned only one valid EORI number” — but each still wants its own tax registration and its own packaging register, and the PPWR that has applied EU-wide since 12 August 2026 harmonised who counts as a producer without merging those registers. Japan asks for no EORI and no packaging register at all, and instead imposes the hardest blocker here: a person living abroad cannot lodge a Japanese import declaration without first appointing a Customs Procedure Agent resident in Japan. Germany owns the second blocker, and it is not tax — a producer with no German subsidiary cannot register batteries or electricals itself at all. Every rule below is quoted from a government, EU or Amazon page, checked 2026-09-04. ...

Amazon FBA ROI Calculator vs Fee Calculator: The Two Numbers Are Not the Same A fee calculator answers “what is left of this sale after Amazon takes its cut.” An ROI calculator answers a different question: “what does each dollar of my own money earn, and how long until I get it back.” ROI = net profit per unit ÷ total invested capital per unit — where invested capital is goods cost plus first-leg freight and duty plus prep and labeling, not the sale price and not the margin percentage. That denominator is the whole difference. Two products can print an identical 19.5% net margin and return 52% and 87% on capital, and only ROI tells you which to reorder when cash is the constraint. Below: the exact denominator, a two-SKU worked example you can recompute line by line, how to derive your own ROI floor, and how payback period sets reorder cadence. ...