Revive Adserver Allow Image Invocation Tag
Revive adserver Invocation Tags Plugin Setting page there is option available as “Allow Image Invocation Tag” to enable “Image Invocation Tag”.
In Revive adserver “Image Invocation Tag” not enabled by default, Revive Administrator need to enable that invocation tag type on Administrator section. Login as admin and click “Plugins” menu tab, then click “Details” link for this “Invocation Tags Plugin” plugin. In that page you will see “Setting” link, by clicking you will be redirected new page, there you can check and enable “Allow Image Invocation Tag” option. Also you can enable what are the invocation tags need to show on zone section.