Amazon.co.uk listing kit

Everything you need to get products onto Amazon.co.uk without errors or suppressed listings: a prep sheet, Amazon's current content and image rules in one guide, a pre-upload checklist, and a listing checker that reads your sheet and tells you what to fix before you upload.

What's inside

• Listing prep sheet: a CSV with one row per product, parent or variation, and a guide to all 35 columns, including the manufacturer and Responsible Person details UK product safety law asks for.
• Content and image rules: titles (including the 75-character limit from 27 July 2026), bullets, descriptions, search terms, images, barcodes and GTIN exemptions, variations, banned claims, category approvals and the UK product safety law that can apply (UKCA and CE marking, Northern Ireland and the EU GPSR, toys, cosmetics, UK plugs, electrical safety, WEEE and battery producer registration) plus prices and VAT, each rule with its source.
• Pre-upload checklist: what a spreadsheet cannot show, from the main image background to approvals, certificates, packed measurements and the first upload.
• Listing checker: a script that checks every row against Amazon's limits and word lists (title length and characters, bullet rules, banned and environmental claims, search term bytes, barcode check digits and prefixes, image links and pixel sizes, prices and variation families) and writes a report of what to fix and what to check by eye.
• Agent skill: lets Claude Code or another AI agent run the checker and draft fixes from your own product facts.
• Worked example: eight sample rows and the checker's report on them.

Who it is for

Sellers starting on Amazon.co.uk, brands moving a catalogue across from their own shop or another marketplace, and anyone who lists products for clients and wants fewer errors and rewrites.

Format

One zip file, delivered by email after checkout. Markdown guides, CSV templates and a Python 3.9 or newer script that needs no other software. Works on Windows, macOS and Linux.

Rules checked against Amazon's published Seller Central pages and GOV.UK guidance on 19 October 2026. Amazon and the UK government change their rules without notice, and every limit the checker uses sits in one file you can update. Made by JS Labs. Licensed for use in the buyer's own business, including on products listed for clients. Not for resale. This kit is not made, endorsed or supported by Amazon.