You are welcome to edit your Facebook sharing options at any time. To turn this feature on or off, please log in and click on 'My Account' and select 'Facebook Sharing' from the list of options that appears on the left.
To turn sharing on, simply click 'Start Sharing'. To stop sharing, please select 'Stop Sharing' and edit the options according to your preferences. Please note that it may take two days for your changes to come into effect and once you disable this feature, you will no longer have the option to preview sales.