Follow the below mentioned steps to link your Etsy seller account to the Etsy integration app.
Step 1: You will see the screen as shown below to connect your Etsy seller account.
Import Existing Etsy products to the App – Choose this option if you already have some items active on your Etsy seller account and you want them to import in the app to further link/import to Shopify store.
And then click “Click Here To Connect” button to continue the installation process.
Step 2: You will be redirected to Etsy website for your authorization to connect your Etsy account with the app. Enter your Etsy login details and click on Continue button.
Step 3: Now click on Allow Access button as shown below to accept the permissions.
Once you will complete all steps of installation, you will be redirected to the Dashboard page of the app.