If you want to update anything on Etsy, you need to publish the listing on Etsy then anything you can update from the App.
Here are the steps, on how to publish the listings on Etsy:
- Visit the “All Products” section under ‘Products’
- Select the products that you want to Upload on Etsy by clicking on the checkboxes present on each product's left side
- Then from the ‘Choose Bulk Action’ drop-down select the 'Publish on Etsy' option
- Hit on the ‘Submit’ button.