To connect Wix and Shiptheory, login to your Shiptheory account and click on your username in the top-right blue menu and select the Manage Channels option from the drop-down menu.

On this page, search for 'Wix', hover your mouse over the Wix logo and click the green + sign: 

From the next page, select 'Connect',  and you will be taken to Wix to authorise the Shiptheory app.

You will need to select your Wix store and approve the Shiptheory app.  

Once you have approved, you will be returned to the Shiptheory site and will have to login to your account to complete the connection:

Once you've completed this step, you can test your connection to Wix: