Big Bang: marketplace guide

About this guide

This is a ChannelEngine guide on the Ljubljana-based marketplace Big Bang. Here you can find information on how to request a 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
• Mappings
• Pricing
• Listed products

Additional information

FAQs

Commercial information

Founded	1991
Headquarters	Ljubljana, Slovenia
Area served (orders)	EU
Area served (shipments)	Croatia, Slovenia
Revenue	EUR 280 million (2023)
Number of monthly visits	1 million
Website	https://www.bigbang.si
Setup cost	none
Commission	4.5-17%
Other costs	EUR 36.00
Payment	Twice/month (1st, 15th of the month)
Product categories	accessories, automotive, beauty, crafts, electronics, games, garden health, home, appliances, office supplies, pet supplies, refurbished, sports, outdoor, tools, toys
Input language	Croatian, Slovenian
Input currency	EUR
Content creation	yes
Minimum number of SKUs	1
Advertisement options	yes
Profile on ChannelEngine	Big Bang

How to request an account

To start selling on Big Bang, you can fill out this form or contact their team by email at marketplace@bigbang.si.

The requirements are:

• EU-registered bank account for payment.
• EU-registered company VAT number.
• Direct shipping of products from the EU.
• EU return address for the product.
• Unique EAN/GTIN numbers for products.

Associated costs

Big Bang does not charge a setup fee, However, it does charge a commission on sales, ranging from 4.5% to 17%, depending on the product category, and a fixed monthly fee of EUR 36.00.

Marketplace features

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

* 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

Big Bang 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.

Mappings

Content

All products (required)

• Address, Country, Email, Name - manufacturer product safety - address and contact details of the manufacturer responsible for product safety.
  
• Address, Country, Email, Name - responsible person EU product safety - address and contact details of the person responsible for product safety within the European Union.
• SL 1 safety info picture - the mage showing instructions for handling the product safely.
• Brand  - the product's brand.
• Description [SL] - the product's description, in Slovenian. HTML formatting is allowed. 
• Main image - the product's main image. The requirements are:
  • Maximum size  - 2,000 KB.
  • Dimensions - 100x100 px at a minimum.
  • Optimal size - 1000x769 px.
    
  • Background - white is preferred.
• Short description [SL] - the product's short description, in Slovenian. 
• SKU - the product's SKU, which is usually the Merchant product number on ChannelEngine.
• Title [SL] - the product's title, in Slovenian. The maximum number of characters is 150.
• Warranty (months) - the product's warranty period, in months.

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)

• Color - the product's color used in variations. 
• Description [DE, EN, ES, FR, HR, IT]- the product's description in one of the six supported languages. HTML formatting is allowed.
• Image (1-9) -  the product's additional images. For requirements, see Main image.
• Parent code - if the product belongs to a product family, map the parent product's SKU.
• Short description [DE, EN, ES, FR, HR, IT] - the product's short description in one of the six supported languages. HTML formatting is allowed.
• Title [DE, EN, ES, FR, HR, IT] - the product's title in one of the six supported languages.   

Offer

Required

• Price - the product's selling price, excluding VAT. If you use pricing v2, this attribute is not mapped under Offer mappings. Instead, it is configured under Pricing, Price rules.
• EAN - the product's 13-digit EAN. Only one active offer per EAN is allowed. 

Optional

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.

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 American 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 American 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. By default, this is set to two. 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
XS	Extra small	Weight up to 2 kg, volume up to 1,000 cm³, and longest side under 185 cm
S	Small	Weight 2-4.99 kg, volume 1.001-30.000 cm³, and longest side under 185 cm
M	Medium	Weight 5-14.99 kg, volume 30.001-50.000 cm³, and longest side under 185 cm
L	Large	Weight 15-49.99 kg, volume 50.001-650.000 cm³, and longest side under 185 cm
XL	Extra large	Weight over 50 kg, above 650.001 cm³, and longest side under 185cm
XXL	Extra extra large	Weight above 50 kg, volume above 650.001cm³, and longest side over 185 cm

Working with discounts

Pricing v1

• To set up a discount, map the Discount price, Discount start date, and Discount end date attributes. If you want to set a permanent discount, map the Discount end date attribute with a date in the far future instead of leaving it unmapped. Otherwise, the offer is not exported, and errors are shown on the Validation and feedback tab.
• The discounted price is only exported if it is lower than the base price.
• If you do not want to set a bulk discount, leave the Discount quantity threshold attribute unmapped.
• To set a bulk discount, the Discount quantity threshold must be set to a value higher than 1. For example, a value of 2 indicates that the buyer must purchase two or more products at the same time to benefit from the discount.

Pricing v2

• To set up a discount, in the Offer mappings step, map the Strike price attribute to your regular price. Then, map the Discount start date and Discount end date attributes to indicate the start and end dates of your discount.
• If you do not want to set a bulk discount, leave the Discount quantity threshold attribute unmapped. To learn how to set up a bulk discount, check out Bulk discounts.
• In the Pricing step, go to Price rules. Map the Price attribute to the discounted price. Both Min. price and Base price fields must be mapped. Note that ChannelEngine exports the higher of the two values – typically the Base price. To learn more, check out ChannelEngine: price rules v2.
• The Price and Strike price attributes cannot be mapped with the same value. ChannelEngine only sets a discount if the value in Price (Base price) is lower than the value in Strike price.
• If set up correctly, your product displays a discount label and a strikethrough price on the channel.

Carrier

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

Pricing

Big Bang requires 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.

Additional information

Order extra data items

When an order is imported to ChannelEngine, ChannelEngine also retrieves extra data items related to the order itself – or to order lines. This extra data is specific to this marketplace. An explanation of each can be found below: 

Order extra data

Keys	Conditional*	Description
organization-name	yes	Organization name
organization-identification-number	yes	Organization identification number
organization-taxid-number	yes	Organization tax identification number
organization-street	yes	Organization street
organization-city	yes	Organization city
organization-zip-code	yes	Organization zip code
organization-country-iso-code	yes	International Organization for Standardization (ISO) code

* Conditional fields are only displayed if the marketplace provides a value.

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.