This is a custom dimension of the type "Media Category". Here static information on a media stream is collected.
"-" classifies all media streams that are not assigned to a media category.
We cannot provide further information here, as each Media Category is configured individually in your Mapp Intelligence system.
For further questions please contact your Mapp Intelligence administrator.
Learn more about typical use cases in the training chapter "Setup Options for the Tracking of Elements"
How to set up categories
