External IDs (EIDs)

External IDs (EIDs) allow DSPs to recognize users across different supply sources, improving match rates, bid relevance, and overall revenue performance.

Adagio supports the transmission of any EIDs within the user.eids or user.ext.eids object of your OpenRTB bid request, such as UID2.0, Ramp ID, ID5, and others.

Be sure to include the following parameters in your eids:

• source (string)

• uids[].id (string)

• uids[].atype (int)

Example OpenRTB 2.5

"user": {
  "ext": {
  "eids": [
    {
      "source": "x-device-vendor-x.com",
      "uids": [
        {
          "id": "yyy",
          "atype": 1
        }
      ]
    }
  ]
}

Example OpenRTB 2.6