Placement positions value 12 means Double box

When to send it

Use 12 for a side-by-side squeezeback: the program shrinks into one box and the ad plays in a second box next to it, so the viewer sees both. Added in AdCOM 1.0-202607, it is sent in Video.pos with a video plcmt of 8 (Squeezeback), whose AdCOM definition names the double box as one of its forms.

Buyers use it to pick a creative sized for the second box, and to decide whether that creative may carry audio while the program keeps playing. It is confused with 13, which adds a branded background around both boxes, and with 8 (Partial Screen), the general fallback. If the ad box sits on top of the content instead of beside it, the slot is an overlay, not a double box.

Example

{
  "imp": [
    {
      "banner": {
        "pos": 12
      }
    }
  ]
}

Fields that carry it

• imp.banner.pos
• imp.video.pos

Other values in placement positions

The placement positions list page explains the whole list and its common mistakes.