Miravia does NOT allow EAN matching. This means that you cannot link and update your products with existing Miravia listings via their EAN code through Lengow.
However, SKU matching is allowed for products that you have already created in your own Miravia account. You can link your catalog to your own existing listings (for example, in the case of a migration). Please note that this matching only works with your own products; you cannot match your SKUs with products created by other merchants.