Amazon treats variants as a single product with their corresponding EAN and ASIN. In the PIM we have included the possibility to generate a single product, obtaining the fields based on the table they come from.
As with the other Sales Layer connectors, links must be established between the fields included in the PIM forms and the target fields, in this case, Amazon fields.
There are various technical aspects that have an effect on the performance of your account on Sales Layer and the processes related with it, such as ecommerce synchronizations and content exportations.