There are three fundamental ad server loop configuration settings. These work independently from one another and have different consequences:
| Setting | Description |
| Allow Ad Serving | If this feature is enabled by itself, only design level ad serving will be enabled. The Allow Ad Serving check box must be enabled for Reserved Loop Time and Send Ad Server Requests for Unsold Spots to function. |
| Reserved Loop Time | Time in the loop template will be reserved for ad serving and the ad server will be polled every loop. |
| Send Ad Server Requests for Unsold Spots | If the loop is not full, there is normally fall back to filler. Enabling Send Ad Server Requests for Unsold Spots enabled results in the player replacing unsold spots with ad server content instead. |
