Authorize Shopify Store
Click Shop Manage below the Settings button to enter the Shop Manage page, and then click the Shopify icon at the top of the page to authorize the Shopify store
On the page that pops up of Connecting your shopify account , click the Shopify app store link on the page to go to Shopify's app store page.
After entering the Shopify app store page, you can click Log In to log in to your Shopify account (if you have already logged in to your Shopify account, you can ignore this step)
Select the store account you want to authorize and log in
Then click Open app to authorize the store
After the store authorization is successful, it will go to the store authorization success page of 4Seller.