To manage return policies:

The Etsy sellers are responsible for setting their own return policies on every product that they have listed for sale as described in “Return Policy” section. In order to ensure a satisfactory shopping experience on Etsy, it is important that sellers must comply with their return policies. If the customers receive a damaged, defective or different product than what is described on the product page, the products are eligible for a return within the specified return window. The following page will take you to the return policy section:

1. Go to the Magento 2 Admin Panel section.
2. Click on the “Return Policy” section available on the panel, for checking about the return policy criterion.
   
3. After clicking on the “Return Policy“, the following page opens up under the title “Manage Return Policies“.
   
4. In Return Policy Id, the id will be mentioned for a particular product for which the return request had been sent.
5.  Accept Returns, specifies that the seller accepts return in case damaged, defective or products that fail to match the product descriptions.
6. Accept Exchanges, specifies that the sellers are accepting exchanges if the product is not tampered with, defective or broken. 
7. Return deadline is the designated time period for sending the product back to the sellers.