You can display a "maintenance page" to all visitors to your website. From time to time and for any reason, site administrators may want to prevent shoppers from accessing the eRatex website.
Disabling the Front End Only:
This method shows shoppers only the contents of the Template.MaintenancePage topic.
The Admin Console is still accessible, and administrators logged in in to the site remain able to browse the front-end of the site.
Follow these steps to create this effect:
Edit the Template.MaintenancePage topic to display whatever content you want your customers to see during the maintenance.
Set the DisplayMaintenancePage.Enable Setting to true.
Click the Refresh Store button at the top of the admin console.