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App Open Signal

OpenRTB imp.ext.cloudx.format flag that identifies App Open inventory

CloudX marks App Open inventory on the bid request with imp.ext.cloudx.format set to app_open. Read this flag to distinguish App Open from interstitial traffic. No other request field changes.

Where to read it

PathValue
imp[].ext.cloudx.format"app_open" on App Open impressions

CloudX stamps the cloudx object on the outbound copy of each impression. It is read-only for demand partners.

Request shape

App Open impressions are otherwise identical to interstitial impressions:

  • imp[].instl is 1.
  • imp[].banner carries fullscreen dimensions derived from the device screen.

Do not rely on instl or banner size to identify App Open. Read imp.ext.cloudx.format instead.

Format values

format is a string from the CloudX ad-format vocabulary. app_open is the only value sent today; CloudX may use the same field to identify other formats in the future. Ignore values you do not recognize.

Example

{
  "imp": [
    {
      "id": "1",
      "instl": 1,
      "banner": {
        "w": 390,
        "h": 844,
        "format": [{ "w": 390, "h": 844 }],
        "pos": 7
      },
      "ext": {
        "cloudx": {
          "format": "app_open"
        }
      }
    }
  ]
}

Enablement

CloudX sends the flag only to endpoints that have confirmed support. Contact your CloudX account manager to enable it for your bidder endpoint.