App.id
The exchange's own identifier for the app. Recommended rather than required, and meaningful only within that exchange.
Field facts
- Path
app.id- Object
- App
- Type
- string
- Requirement
- Recommended
- Added
- OpenRTB 2.0
- Spec section
- 3.2.14
How it is used
The spec names an app ID or bundle as the useful minimum. Unlike App.bundle, the ID differs on every exchange, so cross-exchange matching should use the bundle.
Example
Where the field sits in a payload, with everything else left out:
{
"id": "req-1",
"app": {
"id": "app-552"
}
}Version history
Added in OpenRTB 2.0, and present in the latest snapshot. The table shows how each version's spec text types the field.
| Versions | Type in the spec | Required | Deprecated |
|---|---|---|---|
| 2.0 to 2.2 | string | No | No |
| 2.3 to 2.3.1 | string | Recommended | No |
| 2.4 | string | Recommended | No |
| 2.5 to 2.6-202606 | string | Recommended | No |