Products import

Products can be added to BaseLinker’s warehouse in several ways:

  • Manually
  • With import of offers with the option to create products in BaseLinker’s warehouse
  • By importing products from the file

We would like to remind you that users who own an online store usually do not need to use BaseLinker’s warehouse. Their products are visible ‘on the fly’ in the Allegro/eBay/other marketplace Listing section when the store is connected.

Adding products manually

If you are just starting to sell and creating your product database, you can do this manually by adding the following information to the system:


1) Manufacturer. In BaseLinker warehouse→ Manufacturers section you can provide the name and logo of the manufacturer. When adding products to the warehouse, the list of manufacturers will be displayed in the product edition window. The manufacturer’s name and logo will be available in the offer template – under [manufacturer] and [manufacturer_logo] tags.


2. Category. In BaseLinker Warehouse → Categories section you can create product categories. BaseLinker allows you to create your own category tree, which makes organizing and browsing products much easier.


These categories have initially nothing to do with the marketplace platform categories. These are only your categories created for the purpose of the inventory organization.The categories from the warehouse can be linked to your favorite marketplace categories in the Allegro/eBay/other marketplace → Links/Mappings.


3. Product. InBaseLinker warehouse → Products → “+ add product” button you can add your own products and assign them the appropriate manufacturers and categories. Here you can include all the information about the product required for listing an offer (name, description, images, price, SKU, EAN, manufacturer etc.).




You can upload up to 16 photos to the product in BaseLinker warehouse. If you want to use more images, upload them to an external server and include them in the offer content (in the product description, in the tag <img>).


Most of the available fields can later be used in the offertemplate under appropriate tags (e.g. [name], [manufacturer], [sku], [description] etc.).


Alternatively, you can add an additional description in another language to the product and create a template referring only to this additional description.


Import of products from offers

InAllegro / eBay / other marketplace → Offer management → Offer import you can create products in BaseLinker warehouse based on the offers listed in the selected marketplace account.


You can create categories in the warehouse corresponding to the categories of your offers. You will be able to change the created products and list them again. The BaseLinker warehouse will become the central inventory of your products. Each new item must be added to the warehouse before it can listed as an offer.


For more information about importing products, see article Importing offers and products.


We would like to remind you that users who own an online store usually do not need to use BaseLinker’s warehouse. Their products are visible ‘on the fly’ in the Allegro/eBay/other marketplace Listing section when the store is connected.

Importing products from file

In BaseLinker warehouse → Import you can import products to BaseLinker warehouse from any CSV format file or default XML format file.


Remember to create a backup of your warehouse before carrying out a large import!


Incorrectly configured import may cause irretrievable data loss (e.g. deleting descriptions or overwriting them with another value). You can make a backup copy by downloading the warehouse file in BaseLinker warehouse → Export section (we recommend default export to XML format).


Import does not support creating product variants.

Import from any CSV file

You can import products to BaseLinker from a CSV format file. It is not possible to import a file in XLS format. Therefore, if you edit a file in calculating sheet, remember to save the file in CSV format.


Additionally, you should also make sure that each information is located in a separate column (separated in the CSV file by a specific character – semicolon, comma, tabulator).



It is also important to choose the appropriate character encoding (according to the encoding chosen when saving the file). We recommend using UTF-8 system. If the wrong encoding was chosen (e.g. the file was saved with ISO-8859-2 and WINDOWS-1250 was selected for import), the CSV file can be imported without Polish characters.


To perform an import, go to BaseLinker warehouse → Import, select the CSV format file you want to import, select the character separating the value and encoding type, and then select Import.



The following information should be completed when importing the file:

  • Main column (Link). This column is crucial for modifying data in the warehouse. By default, the link is based on the product ID, but you can also update products by name, EAN, SKU or offer number.
  • Skip the first row. If the first row in the file contains headers, you can skip it.
  • Do not update empty values.  If a field in the file is empty, the system does not update the value in the warehouse. This way you can avoid accidentally clearing the value of a field (e.g. deleting a description if it is not in the file but is in the warehouse).
  • Update all images – check this option only if you want to change images existing in the warehouse to another.
  • Values in the relevant columns. You also have to make sure that the given columns contain the relevant values, e.g. the price column is marked as Price and not e.g. SKU.



Import from a file with a specified format

On the second tab it is possible to import from an XML or CSV file with a predefined format. Any other file will be rejected.


You can check the structure of such a file by exporting an existing warehouse in BaseLinker Warehouse → Export. There are 3 templates available.


BL – Products – Default/ Simplified CSV Format available in BaseLinker warehouse → Product export → BL – Products – default CSV.
BL – Products – Default XML. Format available in BaseLinker warehouse → Export of products → BL – Products – default XML
Ceneo XML. Format available in BaseLinker warehouse → Product export → BL – Products – XML default. Documentation for such file can also be found On the Ceneo website.


 For performance reasons, within a day you can perform:

  • jone import of 10 MB file size 
  • up to 30 smaller imports (10 MB in total)

Importing large files can take relatively long time (up to several minutes). Therefore, we recommend dividing very large files into several smaller ones. 


Instructions on how to connect the wholesaler can be found at Wholesalers.

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