Help Center
Welcome to merXu help center
Here you will find all information about buying and selling on the European trading platform merXu

How to start selling on merXu - step by step guide

You are invited to sell on the international platform merXu for entrepreneurs selling and buying in the industrial and related categories. On merXu, you will find small and medium-sized enterprises as well as large entities, which we enable to complete transactions directly or through requests for quotations.

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! We are available in local languages. This means that your bids will be automatically translated into the national languages of all listed countries.

1. Register an account on merXu

Go to page REGISTRATION. You can click on the “Register” button, which can be found on the merXu homepage in the top right corner.

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You will be taken to a simple form – complete it. Fields with *asterisks are mandatory. 


Register for Free

  • Company contact details: e-mail address and telephone number.
  • VAT/TAX ID - Tax Identification Number - your company name will be automatically added.
  • country where the company is registered.

The e-mail address is one of the most important pieces of data, and it will be used as:

  • account ID, e.g. when logging in;
  • the address to which we will send notifications concerning the account, including about the registration and verification stages of the account;
  • the address to which you will receive marketing information from merXu.

The telephone number you provide in this section may be used to contact you during order processing.

After entering the data in the appropriate fields of the form, read and accept the content of the Terms and Conditions and select the marketing consents of your choice. You will finish setting up the account using the “CREATE ACCOUNT” button.

A welcome message will be sent to the email address provided in the above form. To finish registration just click “ACTIVATE YOUR ACCOUNT” button or copy the following URL into your browser.

!Remember - this link will only work for 24 hours.

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After setting the password, you will be able to log into merXu. However, please give us a moment so that we can verify the details you provided and activate your account.

We will inform you about data verification and account activation in a separate e-mail. 

2. Sales activation

Verification transfer

To activate your sale, make a secure verification transfer of PLN 1. The amount will automatically be returned to the bank account from which the transfer was made. The payment is to confirm your registration details. Remember to make the transfer from the account assigned to the company.

  1. Go to settings of your company profile:
  •     merXu dashboard > Company settings and click on the yellow “Verify your account” button


The transfer is secure and verification will take up to 24 hours.

You can make an online transfer by choosing one of the payment methods:

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After verifying your data, your account will be activated within 24 hours - we will inform you about it by sending a message to your e-mail address provided in the account settings.

You can also check the activation status in the Company settings of your company profile.

 3. Listing offers on merXu

Great! The account is now ready to start selling. It's time for the next step, which is loading offers on the merXu platform.

You can list on merXu in several ways:

  • Manual listing
  • Uploading files
  • BaseLinker
  • API

Manual listing

This model is quick and easy. It will work well if you want to enter just a few listings on merXu.

Just go to the form HERE or via merXu dashboard > Product Catalogue > Create offer.

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Then fill out a simple form (fields marked with an *asterisk are mandatory)


  1. Product ID (mandatory field) — a code assigned by you. It must be unique and used for 1 product only. It can consist of letters and/or numbers;
  2. Category — category path which you can choose by expanding the list;
  3. Product name — the name visible to customers, should uniquely identify the product. You can use up to 255 characters;
  4. Product description - the better you describe your product, the more chance you have of selling it;
  5. Product parameters — define additional product parameters if you think they are needed to be; indicated in the offer. Also, enter the value of the parameter, e.g. units of measurement;

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  1. Product photos — you can add up to 8 photos, each with a maximum weight of 10 MB. Photos may not infringe copyright or industrial property, contain watermarks or contain reflections. Additional photos may show the product in use, close-ups of its important functions, packaging, accessories out of the box and transformations — composite, unfolded, open, closed, etc.;

You can load photos one at a time or select an entire folder.

  1. YouTube video — if you have a video about the product or how to use it, etc., you can post it in the form;
  2. Status — the offer will be visible to Buyers after setting the status to “Active”;
  3. Stock;
  • Sell in multiply of — if you sell a product in packs of e.g. 5 pieces, indicate that the quantity can be increased by the whole set (5 pieces) and not, e.g. by 1 piece;

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  1. Pricing
  • Unit — you can choose: m3, kg, l, m, pcs, m2
  • Currency — you can choose currencies PLN, CZK, EUR, HUF, RO;
  • Net price — enter the net price of your product;
  • VAT rate — select the appropriate rate;
  • Price levels — add price levels to show that the price is more attractive when buying multiple pieces;

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  • Special price — select the appropriate time period in which you would like the special price of a given product to appear;

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  • Hide price — you can select this option if you do not want to show the product price e.g. in case of custom production. Remember that products with hidden price are positioned lower in search results than offers with visible price.
  1. Shipping

You can prepare your individual shipping price lists, add carriers, also for foreign markets. You can read about creating shipping price lists HERE.

If you do not use the prepared shipping price lists, you can enter the price list manually by specifying:

  • Shipment country — select from the list the country from which you plan to ship. By default, the country where your company is registered is selected;
  • Shipping price per item — you can enter the shipping price right from the form or leave this issue until individual arrangements with the Buyer;
  • Shipping time — you can also postpone this point into individual arrangements with the Buyer;
  • Destination countries — countries to which you plan to send your products. The list includes all countries where merXu operates;

Uploading files

This method is recommended when adding more offers.

You can integrate your product catalog with merXu in several ways:

  • merXu format — you can find it by clicking here. Complete it and upload the file to the platform. If you need help, please contact  + 48 600 440 450 or;
  • BMEcat format if you have files in BMECat format , CONTACT US for details on how to upload your offers;
  • Ceneo XML/Google Merchant XML — if you have Ceneo or Google Merchant XML files, you can upload them by yourself via the form. However, if you want us to automatically update prices and contents of the catalog, please send a direct link to your XML file by email to;
  • Heureka formatHeureka is the largest price comparison engine in the Czech Republic and Slovakia, comparing millions of products from tens of thousands of e-shops. If you are a Seller and you use the “heureka channel”, we can easily implement your products on merXu;

If you have catalogs prepared in one of these formats, you can easily import data from your catalog into merXu.

Go to My MerXu > Product catalogue > Upload offers or click HERE.


Select the appropriate option to upload the file.


!merXu formats

You can read about the instructions for creating merXu formats HERE.


If you have a BaseLinker account, you can integrate it into the platform and export offers to merXu. Instructions for the integration can be found HERE.

API merXu

In order to use the REST API, it is necessary to generate access data for the application (client_id and client_secret). This data is generated once for each integration, regardless of the number of users or queries performed.

To generate your access data, please contact

In order to use most of the functionalities it is necessary to authenticate with user data. For this purpose, it is necessary to enter a login and a password. For maximum security, we suggest generating a dedicated password for each integration:

After logging in ( the user receives two tokens:

  • accessToken — a token to be used at each subsequent request for authentication. The token is valid for 30 minutes.
  • refreshToken — a token used to generate a new accessToken.

API is available in all languages supported by merXu. To receive data in the desired language, use the accept-language header ( / Accept-Language) — eg. “Accept-language: pl-PL” or “Accept-language: pl”.

Bravo! You have made your first offers, just look how the first customers will respond ;)

Remember that you can also find them yourself, thus increasing the chance of a successful transaction.

A good place to find customers is the list of public inquiries. HERE you will find inquiries created by potential Buyers.

If you find an interesting query, make an offer to the Buyer.

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