Imp.pmp

A Pmp object listing the private marketplace deals that apply to this impression, with a flag saying whether open-market bids are still accepted. Added in OpenRTB 2.2.

CurrentobjectOptionalSince 2.2

Field facts

Path: imp.pmp
Object: Imp
Type: object
Requirement: Optional
Added: OpenRTB 2.2
Spec section: 3.2.4

How it is used

Leave it out when the impression carries no deals.

Example

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

{
  "id": "req-1",
  "imp": [
    {
      "pmp": {
        "private_auction": 0,
        "deals": [
          {
            "id": "DEAL-2026-0142",
            "bidfloor": 8.5,
            "at": 1
          }
        ]
      }
    }
  ]
}

Version history

Added in OpenRTB 2.2, 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
2.2	object	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

Related fields

Other Imp fields

For a walkthrough of the whole object, read Bid request anatomy.