User.buyerid

A misspelling of User.buyeruid in the OpenRTB 2.3 attribute table, which listed the buyer-specific user ID as buyerid. OpenRTB 2.3.1 restored buyeruid.

Removed after 2.3stringRecommendedSince 2.3

Field facts

Path: user.buyerid
Object: User
Type: string
Requirement: Recommended
Added: OpenRTB 2.3
Last version: OpenRTB 2.3
Spec section: 3.2.13

How it is used

The sample requests in the 2.3 document already used buyeruid, and live traffic kept that name throughout. Treat buyerid as a documentation error, not a field to send: outside a strict 2.3 schema, a consumer reads it as an unknown key and the ID is lost.

Version history

Added in OpenRTB 2.3, last present in 2.3. The table shows how each version's spec text types the field.

Versions	Type in the spec	Required	Deprecated
2.3	string	Recommended	No

Related fields

User.buyeruid
User.id

Other User fields

buyeruid
consent
customdata
data
eids
ext
gender
geo
id
keywords
kwarray
yob

For a walkthrough of the whole object, read User identity and EIDs.