Abandoned Carts
If you enable the "Abandoned Carts" automated email job, emails will be sent to users when they have started a cart, but have not completed it within a time-frame you have set. With the default job settings, these notifications are sent to the user who started the cart, but they can also be configured to send to a site Admin and the user, or even just the Admin and not the user.
This notification will be sent to the email address, or combination of email addresses, that you entered when you set up the "Abandoned Carts" automated email job.
The Notification
This notification is automatically generated by the WebAlliance system when the criteria configured in the "Abandoned Cart" automated email job are met. You can determine how often it runs, how old the cart needs to be before the email gets sent, who it gets sent to, etc.
You can change what this email notification says by editing the "Automation Job - Unpurchased Cart Message" email template, under Site Manager>Email Templates. This email is generally sent to the user, though, so keep that in mind when editing it.