Creative subtypes (audio and video) value 12 means VAST 4.1 Wrapper
VAST 4.1 Wrapper. An AdCOM addition.
When to send it
Send 12 when the player follows VAST 4.1 wrappers. The value comes from the AdCOM list rather than the OpenRTB 2.5 table.
Most buyers serve through at least one wrapper, so a 4.1 player that omits 12 cuts out a large share of demand. It is confused with 11 and with 8 (VAST 4.0 Wrapper). Audio sellers that moved from DAAST to VAST should list 12 for the same reason they used to list 10.
Example
{
"imp": [
{
"audio": {
"protocols": [
12
]
}
}
]
}Fields that carry it
Other values in creative subtypes (audio and video)
| Value | Name |
|---|---|
1 | VAST 1.0 |
2 | VAST 2.0 |
3 | VAST 3.0 |
4 | VAST 1.0 Wrapper |
5 | VAST 2.0 Wrapper |
6 | VAST 3.0 Wrapper |
7 | VAST 4.0 |
8 | VAST 4.0 Wrapper |
9 | DAAST 1.0 |
10 | DAAST 1.0 Wrapper |
11 | VAST 4.1 |
13 | VAST 4.2 |
14 | VAST 4.2 Wrapper |
15 | VAST 4.3 |
16 | VAST 4.3 Wrapper |
The creative subtypes (audio and video) list page explains the whole list and its common mistakes.