plcmt 7 means Overlay
Added in AdCOM 1.0-202607. Placed over program content while it plays, outside the ad break.
When to send it
Send 7 for an ad that appears on top of program content while it keeps playing, outside a normal ad break: a band along the bottom of the picture, a corner unit, or a picture-in-picture execution. The content player remains the focus of the screen. The value was added in AdCOM 1.0-202607.
Many overlays are delivered as non-linear VAST, so Video.linearity 2 often accompanies 7, and the corner or band can be stated in Video.pos with the placement positions added in the same release. Keep the two fields apart: linearity describes the creative the player expects, plcmt describes the placement. The closest neighbor is 8 (Squeezeback): an overlay covers part of the picture, while a squeezeback shrinks the picture so nothing is covered.
Example
{
"imp": [
{
"video": {
"plcmt": 7
}
}
]
}Fields that carry it
Other values in plcmt subtypes (video)
| Value | Name |
|---|---|
1 | Instream |
2 | Accompanying Content |
3 | Interstitial |
4 | No Content/Standalone |
5 | Pause |
6 | Screensaver |
8 | Squeezeback |
9 | In-scene |
The plcmt subtypes (video) list page explains the whole list and its common mistakes.