HORNBACH: marketplace guide

About this guide

This is a ChannelEngine guide on the Germany-based marketplace HORNBACH. Here you can find information on how to request a HORNBACH account, how to configure this marketplace on ChannelEngine, and what the specific requirements are.

Table of contents

Commercial information

How to request an account

Associated costs

Marketplace features

Settings and configuration

Marketplace-specific requirements and exceptions

• Setup
• Categorization
• Mappings
• Pricing
• Listed products

FAQs

Commercial information

How to request an account

To start selling on HORNBACH, go to the Marktplatz-Partner bei HORNBACH werden (in German) page on their website and apply.

HORNBACH's requirements for partners include the following:

• Ship from the European Union (EU).
• Provide first-level support in German.
• Have a German VAT or a One Stop Shop (OSS) scheme.

Associated costs

HORNBACH does not charge a setup fee. However, it does charge a monthly fee of EUR 39.00, as well as a commission fee of 12%.

Marketplace features

* While it is possible to map variation attributes within specific product categories, it is not possible to send product families to the marketplace via API. 

** On HORNBACH, the only supported sales channel is Germany (1001), even if attributes are available to map for the Czech Republic (1120).

Settings and configuration

Setting up each channel on ChannelEngine follows the same flow, though not every channel includes the steps listed below.

1. Go through the Setup.
2. Create a Product selection.
3. Complete the Categorization.
4. Set up the Mappings: content, offers, and carriers.
5. Configure the Pricing: rules and currency conversion.
6. Fill in the Stock settings.
7. Finish the Activation.
8. Check the Listed products overview.

Marketplace-specific requirements and exceptions

Setup

On ChannelEngine

Connection

1. This channel is a Mirakl-based channel. Therefore, you connect to it with your Mirakl Connect SSO account. For more information on configuring Mirakl Connect SSO with ChannelEngine, check out the Mirakl-based channels: SSO authorization article.
2. If you would like to test the order flow with this plugin, contact the ChannelEngine Support team to configure the connection of your plugin to support testing. For more information on testing orders, check out the article ChannelEngine: how to create test orders.

Invoice uploads

To configure your invoice settings, go to Advanced settings. Then, select one option from the dropdown menu in the Enable invoice uploading field, which contains the following options:

• ChannelEngine invoices - when ChannelEngine receives a shipment, ChannelEngine automatically generates an invoice and attaches it to the shipment before exporting the shipment.
• Merchant invoices (optional) - when ChannelEngine receives a shipment, ChannelEngine exports the shipment – even if there is no invoice attached to it.
• Merchant invoices (required) - when ChannelEngine receives a shipment, ChannelEngine only exports the shipment if an invoice is attached to it. If not, you receive a notification.
• None - when ChannelEngine receives a shipment, ChannelEngine takes no action other than notifying you that no invoice is present.

If you select one of the Merchant invoices options, make sure to upload the invoice to ChannelEngine via the Merchant API or via the web interface. To learn more, check out the article ChannelEngine: upload merchant invoices.

Categorization

All categories on HORNBACH are listed in German.

Mappings

Content

All products (required)

The following required attribute is common to all Mirakl-based marketplaces:

• Export strategy - choose a strategy for exporting product data. Select from:
  • Yes - export all product content to the marketplace, including the EAN (GTIN), category, and other mapped attributes. This option is ideal if you manage both product content and offers on ChannelEngine for the marketplace. Ensure that you map all required attributes.
  • No - do not export product content to the marketplace. Choose this option to keep product content excluded from exports and only export the offers. This option is ideal if you do not want to export the product content yet, or you want to export only the product offers because the product content already exists on the marketplace.

• Bild 01 (Image 01) - the product's main image. The requirements are:
  • File format - JPEG, JPG, PNG.
  • Resolution - at least 1,200x1,000 px.
  • Aspect ratio - ideally 5:4.
  • Maximum file size - 15,360 KB.
  • All items/parts that are not included in the delivery should be grayed out in the product image.
• GTIN Pool je Artikel (GTIN pool per article) - the product's GTIN, such as its EAN.
• Marktplatzpartner Artikel (Marketplace partner article) - the product's SKU.

All products (optional)

• Artikelname (Shop) (Product name) - the product's title. The maximum number of characters is 255.
• Bild 01-06 Typ (Image type) - the type of image. Note that the value of this attribute is associated with the image with the same number. E.g.: if Bild 02 shows a 360° image, map '360°' to Bild 02 Typ.
• Bild 02-06 (Image 02-06) - the product's additional images. For the requirements, see Bild 01.
• Dokument 01-03 (de_DE) (Document 01-03) - the product's document, such as a user guide. Note that some of these attributes contain a language code, and you can only map these with documents in the related language.
• Dokument 01-03 Typ (Document type) - the type of document. Note that the value of this attribute is associated with the document with the same number. E.g.: if Dokument 02 shows a certificate, map 'Zertifikat' to Dokument 02 Typ.
• Marketingtext (Marketing copy) - a detailed description of the product, with a maximum of 4,000 characters. The requirements are:
  • Do not include price information.
  • Use direct, hands-on language.
  • Keep it respectful, authentic, and passionate, with down-to-earth keywords.
  • Use synonyms.
• Video 01-03 (de_DE) - the product's video. Note that some of these attributes contain a language code, and you can only map these with videos in the related language.
• Video 01-03 Typ  (Video 01-03 type) - the type of document. Note that the value of this attribute is associated with the video with the same number. E.g.: if Video 02 links to a video, map 'Video' to Video 02 Typ.
• Webshop Kategorie ID (Webstore category ID) - this attribute is no longer valid.

Offer

Required

• GTIN pool je artikel (GTIN assigned per product) - the product's GTIN.
• Price - (only appears if using pricing v1) the product's price.
• Net price - the product's price, excluding VAT.

Optional

• Base price - the price for the product's basic unit, e.g.: the price per square meter of laminate floor.
• Country of manufacturer - two-letter ISO country code indicating the country where the product manufacturer is legally located, required for EU General Product Safety Regulation (GPSR) compliance.
• Country of responsible EU economic operator - two-letter ISO country code for the country where the designated EU-based responsible person, importer, or authorized representative is established.
• Electronic address of manufacturer - direct email address or electronic messaging URL for contacting the manufacturer regarding product safety and compliance queries.
• Electronic address of responsible EU economic operator - primary email address or digital contact channel for reaching the designated responsible economic operator in the EU.
• House number of manufacturer - building or house number associated with the physical corporate address of the manufacturer.
• House number of responsible EU economic operator - house or building number for the physical location of the EU economic operator.
• Location of manufacturer - city or municipality where the product manufacturer's primary business office is located.
• Location of responsible EU economic operator - city or municipality where the EU responsible economic operator is legally established.
• Manufacturer - legal commercial name or entity name of the company that manufactured or produced the product.
• Name of responsible EU economic operator - full legal business name or individual name of the designated responsible entity in the EU under GPSR rules.
• PO box of manufacturer - post office box number for physical postal mail sent to the manufacturer, where applicable.
• PO box of responsible EU economic operator - post office box number for postal mail sent to the EU responsible economic operator, where applicable.
• Price switch - offer-level flag used in Hornbach feed mapping to control unit pricing display, base price calculation rules, or automated price update behavior.
• Registered trade - commercial registration number, trade classification, or business registry entry for the manufacturer or economic operator.
• Registered trade name - officially registered trademark or commercial trading name under which the manufacturer markets the product.
• Street of manufacturer - physical street name or thoroughfare for the manufacturer's address.
• Street of responsible EU economic operator - physical street name or thoroughfare for the EU responsible economic operator's registered office.
• Web address leading to contact form - direct HTTPS link pointing to an online contact form for contacting the product manufacturer.
• Web address leading to contact form of responsible EU economic operator - direct HTTPS link pointing to an online contact form for submitting safety or compliance inquiries to the EU responsible economic operator.
• Zip code of manufacturer - postal code corresponding to the registered physical address of the manufacturer.
• Zip code of responsible EU economic operator - postal code corresponding to the registered physical address of the EU responsible economic operator.

The following offer attributes are common to some Mirakl-based marketplaces:

• ECO #1-5 amount - the amount due for the eco-contribution related to the product. E.g.: 2.50.
• ECO #1-5 EPR category code - the extended producer responsibility (EPR) code that applies to the product. For a list of category codes, check out the article Providing data to comply with circular economy regulations in Mirakl's help center (note that you need to be logged in to Mirakl to access this page). E.g.: DE-WEEE, FR-DEA, etc.
• ECO #1-5 producer ID - your producer ID, received upon registering with a packaging register, such as Germany's LUCID. The maximum number of characters is 255.
• Category-specific ECO attributes - depending on your sales country, you might be required to map additional ECO attributes for products in specific categories. Review which ECO attributes to map within each category.

If pricing v2 is activated in your environment, you will see the following offer attributes, which are common to all Mirakl-based marketplaces:

• Allow promotion below min price - set to true to allow the promotion price to drop below your product's minimum price. To learn more, check out the article ChannelEngine: promotions.
• Strike price - the regular selling price. Only map this if you set up a discount. For guidance, check out the Working with discounts section of this article. 
• Map your current selling price in Price in Pricing, Price rules. 
• Additionally, the Fee groups attribute appears in Mappings, Fee group mappings, if pricing v2 is activated. Map the marketplace fee group ID of the product there.  

The following offer attributes are also common to all Mirakl-based marketplaces:

• Discount start date - the date from which the product's sale price is valid, if applicable. Input the date as a fixed value. The date format is YYYY-MM-DD HH:MM:SS ZZ. All dates follow ISO month-day formatting, and all times follow 24-hour formatting in the UTC timezone. E.g.: 2026-10-25 15:30:00 +01 will start your discount on 25 October 2026 at 3:30 PM, one hour ahead of UTC time.
• Discount end date - the date until which the product's sale price is valid, if applicable. Input the date as a fixed value. The date format is YYYY-MM-DD HH:MM:SS ZZ. All dates follow ISO month-day formatting, and all times follow 24-hour formatting in the UTC timezone. E.g.: 2026-10-30 23:59:59 +01 will end your discount on 30 October 2026 at 11:59 PM and 59 seconds, one hour ahead of UTC time.
• Discount price - (appears only if you use pricing v1) the product's sale price, if applicable. This attribute must have a lower value than the Price attribute. 
• Discount quantity threshold - the minimum quantity required for the discount rate to become available.
• Leadtime to shipment - the number of days before you ship the product. You can create your own unique rules, if applicable. For more information on this, check out the article Lead time to ship in Mirakl's help center.
• Minimum quantity alert - map this attribute to receive a notification from Mirakl if your stock drops below the threshold defined.
• Offer state - the product's condition. Find your option from the dropdown menu by selecting the fixed value to apply to all.
• Product tax code - the taxation code applicable to the product.
• Logistic class - your optional shipping class. Make sure to map the shipping class using the marketplace’s codes and not with the labels that are visible in the partner portal's user interface. These codes vary per marketplace. If this marketplace makes use of logistic class codes, they can be found below.

Logistic class codes

Carrier

Carrier mapping is not required on Mirakl-based marketplaces. However, with carrier mapping, you can map your carrier to a specific list of carriers maintained by this marketplace. Carrier mapping enables ChannelEngine to automatically send the tracking codes to this marketplace, allowing buyers to eventually track the shipment themselves. If your carrier is missing from the list, please directly contact the marketplace.

Pricing

Submit all your prices in euros (EUR).

Working with discounts

Listed products

If you have problems with products not appearing on Mirakl-based marketplaces – especially if you are trying to create products, check the Listed products page for more information. Use the Channel status filter or the Validation and feedback tab to view all known errors for specific products.

If you see either of the below statuses, refer to the article ChannelEngine: why is my product listed as 'Product not found' in the inventory report?:

• Product not found in inventory report
• Product not in offer file

Products that ChannelEngine has failed to export are shown as Invalid, e.g.: products with an empty GTIN or that do not yet exist on the marketplace.

Alternatively, download the error report generated by Mirakl. To do so:

1. Log onto the Mirakl platform and go to Catalog, Product imports.
2. Identify the latest report and click the See details button.
3. Download the CSV file Non-integrated products report.

FAQs

How often does each task run on Mirakl-based marketplaces?
By default, Mirakl-based marketplaces follow the schedule below:

Can I map attributes on ChannelEngine and on the Mirakl platform?
No. Mapping attributes on the Mirakl marketplace platform interferes with ChannelEngine's content export. Therefore, it is recommended to categorize and map content only on ChannelEngine.

Why am I not receiving feedback on my content and/or offer exports?
Some Mirakl-based marketplaces manually review content and/or offers before products can go live. Because of this, feedback reports may take a few hours or several days to become available.

Offer feedback - error reports are mostly generated automatically and are imported quickly.

Content feedback

• Transformation error report - automatically generated and usually imported within a maximum of one day.
• Conventional error report - requires a manual review by the Mirakl-based marketplace, and not all do so. It can take several days for this report to be imported.

Note that the previous feedback report is not removed from ChannelEngine until both the latest transformation and the conventional reports have been fully processed by ChannelEngine. If there are no errors to report, no new reports are generated.