When you have new products you would like to offer on a marketplace, it is necessary that the marketplace knows the critical information of your products. For example the title, description, and images of your products. You can also enrich product information on the marketplace by sending this information to the marketplace.
When mapping a product on the marketplace, keep in mind that every marketplace has its own procedures. For more information about these procedures you can contact the marketplace.
You can do this with EffectConnect by creating so-called mapping groups. In these mapping groups, you can link certain information from your webshop to the marketplaces, so the information will be sent to the right place for creating or enriching product information.
To read more about creating and using mapping rules, you can read this article.