Connect to Xero
To connect your Shopify store to your Xero account, simply click on the Connect button in the "Setup - Xero" screen.
This will redirect you to Xero, and prompt you to log into your Xero account.
Once you've logged in, you will be prompted to allow access for the "Post from Shopify" app to be able to post data from your Shopify store to Xero.
If you have multiple companies set up on your Xero account, be sure to choose the right company to link up with your Shopify store.
Click on the "Allow access" button.
Once you've done so, you'll be redirected back to the "Post to Xero" app page with the Xero connection showing up as "Account connected".