Geo.metro
The metro area as a Google metro code, a numeric code sent as a string that closely tracks but does not exactly match Nielsen DMA codes in the US, such as "807" for San Francisco.
Field facts
- Path
device.geo.metro,user.geo.metro- Object
- Geo
- Type
- string
- Requirement
- Optional
- Added
- OpenRTB 2.0
- Spec section
- 3.2.19
How it is used
Buyers planning against TV markets use it as a DMA proxy. The 2.5 COPPA guidance recommends dropping it for child-directed traffic.
Example
Where the field sits in a payload, with everything else left out:
{
"id": "req-1",
"device": {
"geo": {
"metro": "807"
}
}
}Common mistakes
- Sending the code as an integer such as 807 instead of the string "807".
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 2.1 | string | No | No |
| 2.2 | string ht cs co sa | No | No |
| 2.3 to 2.3.1 | string | No | No |
| 2.4 | string | No | No |
| 2.5 to 2.6-202606 | string | No | No |