How to List Your Amazon Products on B&Q Marketplace
A step-by-step guide to listing your Amazon products on B&Q marketplace in 2025 — catalogue mapping, content adaptation, attribute requirements, and bulk upload methods.
You have an approved B&Q marketplace seller account, a catalogue of Amazon products in the home and garden space, and you are ready to list. The question is: how do you do it efficiently without creating duplicate work, and where does your existing Amazon data transfer cleanly versus where does it need rebuilding from scratch?
This guide covers the practical listing process for Amazon sellers moving product data across to B&Q marketplace — the field-by-field mapping, the content adaptations required, the bulk upload process through Mirakl, and the most common errors that cause listings to be rejected or under-perform at launch.
Before you start: Download the B&Q marketplace product data template for each of your product categories from the Mirakl seller portal. Every category has a different required attribute set. Working from the correct template for each category prevents the most common cause of bulk upload failures — submitting data against the wrong schema.
The Five-Stage Listing Process
Categorise Your Amazon Products Against B&Q's Category Tree
Before touching any product data, map each of your Amazon products to the equivalent B&Q marketplace category. This is not always a direct match — Amazon and B&Q use different category naming conventions and hierarchies. Work through your catalogue systematically and identify the most appropriate B&Q category for each product. Products that have no suitable B&Q category should be set aside — do not attempt to force-fit them into an incorrect category, as this leads to listing rejection or poor search visibility.
Export Your Amazon Product Data
From Amazon Seller Central, export your inventory data using the Inventory Report or Flat File inventory template. This gives you a working spreadsheet of all your product data including titles, descriptions, bullet points, ASINs, dimensions, weights, and images. This export is your starting material — it is not ready to submit to B&Q marketplace, but it gives you all the raw data you need to build compliant B&Q listings efficiently.
Map and Adapt Your Product Data to B&Q's Template
Open the B&Q marketplace category template alongside your Amazon export. Go field by field — some Amazon data transfers directly, some requires adaptation, and some B&Q fields have no Amazon equivalent and must be written from scratch. The mapping table below covers the most important fields and what treatment each requires.
Prepare and Upload Product Images
Images are handled separately from the product data CSV. B&Q marketplace requires images to be hosted at publicly accessible URLs — either uploaded to your own hosting or referenced from an image hosting service. Verify each image against the platform's technical requirements: minimum dimensions, white background for hero images, no promotional overlays. Build your image URL list alongside your product data spreadsheet so both are ready to submit together.
Submit via Mirakl and Monitor for Errors
Upload your completed product CSV through the Mirakl portal's product import tool. Mirakl will process the file and return an error report for any rows that fail validation — typically within a few hours for standard catalogue sizes. Review and correct any flagged errors, then resubmit the corrected rows. Successfully processed products will move into a review queue before going live; monitor the status of each submission in the portal and address any content review queries promptly.
Field-by-Field: What Transfers, What Needs Adapting, What Needs Building
| Field | Amazon Source | B&Q Treatment |
|---|---|---|
| Product Title | Amazon title | ADAPT — Shorten to 120–160 chars, natural language, no keyword stuffing |
| Description | Amazon bullet points + description | ADAPT — Rewrite as 300–500 word flowing prose; no bullet lists in description field |
| Hero Image URL | Amazon main image | TRANSFER — If white background, meets resolution spec, no overlaid text |
| Additional Images | Amazon variant/lifestyle images | TRANSFER — Review each against content standards before including |
| EAN / GTIN | Amazon EAN/UPC field | TRANSFER — Direct map to B&Q EAN field |
| Brand | Amazon brand field | TRANSFER — Direct map |
| Dimensions & Weight | Amazon product dimensions fields | TRANSFER — Convert units if needed (B&Q uses metric) |
| Colour / Finish | Amazon colour field | ADAPT — Map to B&Q's approved colour taxonomy for the category |
| Category-Specific Attributes | No direct equivalent | BUILD NEW — Complete from your product knowledge; these vary by category |
| Price | Amazon price | ADAPT — Recalculate floor price using B&Q commission; set independently |
| Stock Quantity | Amazon inventory | BUILD NEW — Set independently; do not mirror Amazon live inventory directly |
The Most Common Listing Errors — and How to Avoid Them
Missing mandatory attributes
The most common cause of bulk upload failures. Each B&Q category has a specific set of mandatory fields. Download and read the category template before starting — do not assume your Amazon attribute set covers everything required.
Descriptions submitted as bullet lists
Copying Amazon bullet points into the B&Q description field results in poor content quality scores and often fails the platform's content review. The description field expects prose, not formatted lists.
Image URLs returning 404 errors
If your image hosting expires or changes between submission and review, the listing will fail or launch without images. Use stable, permanent image hosting for all B&Q marketplace product images.
Titles exceeding character limits or containing prohibited content
B&Q marketplace enforces title length limits and prohibits promotional language such as "BEST SELLER," "FREE SHIPPING," or superlatives in titles. Review each title before submission.
Pro Tips for a Clean First Upload
- Test with 5–10 products before bulk uploading your full catalogue — validate the process works cleanly at small scale first
- Keep your product data spreadsheet as the master record; document every mapping decision so you can reapply it consistently at scale
- Run the platform's validation tool on your CSV before submitting if available — catches formatting errors before they create reject reports
- Set launch pricing at or slightly below category median to build early sales velocity while rankings are establishing
- Monitor the portal daily for the first two weeks post-launch to catch and resolve any content review queries quickly
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Frequently Asked Questions
Can I bulk upload my Amazon catalogue to B&Q marketplace?
Yes — B&Q marketplace supports bulk product listing through CSV file uploads via the Mirakl seller portal. The CSV template is category-specific, as required attributes differ by product type. Download the correct template for each of your product categories, map your Amazon product data to the B&Q attribute fields, and adapt titles and descriptions before submitting. Review a sample of listings manually before bulk uploading to catch mapping errors early.
What happens if my Amazon product does not fit neatly into a B&Q marketplace category?
If a product does not have a clear category match on B&Q marketplace, it may not be eligible for listing. B&Q operates a more curated category structure than Amazon. Focus your initial B&Q marketplace catalogue on products with the clearest category fit, and treat borderline products as secondary considerations once you are established on the platform.
How long does it take for a newly listed product to appear in B&Q marketplace search results?
Products submitted through the Mirakl portal go through a content review process before going live, which can take from a few hours to several business days. Once live, new listings begin appearing in search results immediately, though they rank lower than established listings until they accumulate sales history and performance data.
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