Improve the import of the person responsible for the goods with cs-cart

Product https://crm.stylesalon.com.ua/admin/shop/products/1657/edit/ There is an additional field https://crm.stylesalon.com.ua/admin/shop/productfield/1/ this is a contact directory This field in cs-cart is filled from the admin panel, an array is given via api, in which there is a user_id field https://take.ms/OR10Z - this is the user's internal code on the site. We write this code in the external id of the contact in the box https://take.ms/i5y09 But there is always a problem with the external contact id when we collect contacts from different resources, therefore, it is most likely better to search for a contact by an additional field. Total: When importing products from cs-cart, you need to do this so that the "Manager" field is loaded into the additional product field: - If the field is "Contact Directory", then search for a contact in the box by the selected additional contact field - If the additional field is not "Contact Directory" - just wri