App.ext

Exchange-specific extensions for the app. The spec defines nothing inside it, so its contents depend on the exchange's own documentation.

CurrentobjectOptionalSince 2.1

Field facts

Before 2.6-202211 some sellers carried inventorypartnerdomain in this object. It is now the core field App.inventorypartnerdomain.

Where the field sits in a payload, with everything else left out:

{
  "id": "req-1",
  "app": {
    "ext": {}
  }
}

Leaving the value only in app.ext.inventorypartnerdomain after moving to 2.6-202211 or later. Buyers on current snapshots read the core field.

Added in OpenRTB 2.1, 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
2.1	object con par sup def	No	No
2.2	object co pa su de	No	No
2.3 to 2.3.1	object	No	No
2.4	object	No	No
2.5 to 2.6-202606	object	No	No