HORNBACH: marketplace guide

About this guide

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

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

Founded	1977
Founder	Otmar Hornbach
Headquarters	Bornheim, Germany
Area served (orders)	Germany
Area served (shipments)	Germany
Website	HORNBACH
Setup cost	none
Commission	12%
Other costs	EUR 39.00
Payment	on the 11th, 21st, and last day of each month
Product categories	DIY/gardening, electronics, furniture/interior design, household appliances, pets, sports equipment
Input language	German
Input currency	EUR 39/month
Content creation	yes
Minimum number of SKUs	no
Advertisement options	no
Profile on ChannelEngine	HORNBACH

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

Supported	Not supported
Product content	Automatic relationships
Product offers	Product variations (size/color)
Cancelations (merchant)	Refurbished products
Returns (merchant)	Repricing
Carrier mapping	Cancelations (marketplace)
Orders	Returns (marketplace)
HTML formatting	Shipments
Bundles	Sales channels*
Invoice uploads	Marketplace fulfillment service
Settlements	Multiple stock locations

* A marketplace that supports sales channels allows merchants to list and sell products across multiple markets (e.g.: countries, regions, and states), all from the same connection.

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

HORNBACH is a Mirakl-based marketplace, so you can connect it with ChannelEngine using a Mirakl Connect SSO account. For more information on this, check out the Mirakl-based channels: SSO authorization article.

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

Categorization on HORNBACH is straightforward, and all categories are listed in German.

Mappings

Content

All products (required)

• 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.

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

• Export strategy - choose a strategy for exporting product data. You can select from the following export strategies:
  • 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 through ChannelEngine for the marketplace. Before you set this option, ensure that you map all required attributes.

  • No - do not export product content to the marketplace. Choose this option to keep the 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.
     

    NB: the default export strategy is Yes, even if the Export strategy attribute is left unmapped.

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 no 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

• Price - 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.

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 it 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. Use it in combination with the Price attribute to set up a discount/strikethrough pricing. To learn more, check out the 'Working with discounts' section of this article. 
• 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 - the product's sale price, if applicable. This attribute must have a lower value than the Price attribute. This attribute only applies if you use pricing v1.
• Discount quantity threshold - the minimum quantity required for the discount rate to be 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.

Code	Label	Description
LC_00_Free_Parcel	Free shipping: parcel & envelope	Free delivery of parcels, packages, and shipping envelopes.
LC_00_Free_Pallet	Free shipping: pallet	Free delivery of pallets.
LC_00_Free_Special	Free shipping: special logistics	Free delivery, special logistics.
LC_01_Small	Envelope/Parcel	Small deliveries (e.g.: shipping envelopes, letters, parcels). Up to 2 kg, and with a maximum dimension of 60x30x15 cm.
LC_02_Medium_parcel	Standard parcel	Normal-sized parcels with available tracking information. Up to 30 kg, and with a maximum dimension of 120x60x60 cm.
LC_03_Large_parcel	Oversize parcel	Bulky packages, or packages in special size with available tracking information. Up to 40 kg, and a maximum dimension of 200x160x80 cm.
LC_04_XL_Half_Pallet	Half pallet	Half-pallet with available tracking information. Up to 500 kg, and a maximum dimension of 120x80x60 cm.
LC_05_XXL_Full_Pallet	Full pallet	Full range with available tracking information. Up to 900 kg, and a maximum dimension of 220x120x80 cm.
LC_06_Special_logistics_1	Two-man handling	Special logistics 1: configurable for individual special logistics of the MP partner. Two-man handling.
LC_07_Special_logistics_2	Crane delivery	Special logistics 2: configurable for individual special logistics of the MP partner. Crane delivery.

Carrier

Carrier mapping is not required on HORNBACH. However, you can map your carrier to a specific list of carriers maintained by HORNBACH. This allows for working tracking codes in the back-end, as well as for the buyer. If your default carrier is missing, contact HORNBACH to have it added to the list.

Pricing

HORNBACH requires the prices to be submitted in EUR. If you do not have pricing attributes in EUR, you need to set a currency conversion.

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:

Task	Frequency
Export product data to marketplace	every 60 minutes
Export product offers to marketplace	every 15 minutes
Import product offers from marketplace	every 15 minutes
Import orders from marketplace	every 15 minutes
Export order shipments to marketplace	every 15 minutes
Export returns to marketplace	every 30 minutes

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?
Chances are that you are receiving the feedback. However, different types of error reports can take a couple of hours or several days to be generated:

• Offer feedback
  • Error reports are mostly generated automatically and are imported quickly.
• Content feedback
  • Transformation error report - this is automatically generated, and usually imported within a maximum of one day.
  • Conventional error report - this 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.