According to the instructions (appendix), I can attach a store to the afillate products during the XML import, from which the store logo is downloaded. The manual also states that the store can also be created in an XML feed. But I don't have these fields to create a store.
And the second problem. In the Czech Republic, we use letters with accents ŘŠČÁÍÉĚÚŮ and others. If these letters are in the product code, then an incorrect link to the product in the external e-shop is created during XML import and error 404 is reported during the transition. The same error 404 is even if there is a space in the code, for example Code 122 258.
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1. Ok, I forgot. Store option is for Posts only, you are using products which have no Stores