There is no grouping by product of offers from different suppliers.

During the import of one product with different suppliers from the CMS, new product cards are created in BOX with the same article-brand, and the number of such duplicates is equal to the number of suppliers of this product. That is, there is no grouping of offers from different suppliers by product. For a new Article-Brand, there must be one product card, and in Suppliers, all suppliers of this product. The checkbox "Allow binding to a product of several items from one supplier" is checked. Let me remind you that for the CMS ExtraParts application, the unique products are the Article-Brand bundle (the name and so on does not matter). Need to find out: 1. Checkbox "Allow binding to the product of several items from one supplier" - what does it mean? - Can you help me with my problem? 2. Did the problem appear in BoxOS? Since I don’t remember whether this integration worked correctly after its development (2017), since then class box_auto_action_extraparts_import_products has been disabled (Box worked in one thread and could not cope with 5 million unique products from the CMS). 2. Or do you need a revision to solve the problem described in the topic?