User§3.2.20 · Bid Request
This object contains information known or derived about the human user of the device (i.e., the audience for advertising). The user id is an exchange artifact and may be subject to rotation or other privacy policies. However, this user ID must be stable long enough to serve reasonably as the basis for frequency capping and retargeting.
| Attribute | Type | Description |
|---|---|---|
| id | string | Exchange-specific ID for the user. At least one of id or buyeruid is recommended. |
| buyeruid | string | Buyer-specific ID for the user as mapped by the exchange for the buyer. At least one of buyeruid or id is recommended. |
| yob | integer | Year of birth as a 4-digit integer. |
| gender | string | Gender, where "M" = male, "F" = female, "O" = known to be other (i.e., omitted is unknown). |
| keywords | string | Comma separated list of keywords, interests, or intent. |
| customdata | string | Optional feature to pass bidder data that was set in the exchange's cookie. The string must be in base85 cookie safe characters and be in any format. Proper JSON encoding must be used to include "escaped" quotation marks. |
| geo | object | Location of the user's home base defined by a Geo object (Section 3.2.19). This is not necessarily their current location. |
| data | object[] | Additional user data. Each Data object (Section 3.2.21) represents a different data source. |
| ext | object | Placeholder for exchange-specific extensions to OpenRTB. |
Field descriptions reconciled against the official 2.6 draft; 2.5-specific fields come from a third-party Go implementation source (Apache 2.0), proofread against the official PDF · first-draft proofreading