openrtb.2.6.language.bcp47

What it means

OpenRTB 2.6-202204 introduced language.bcp47, which openRTB 2.6 added BCP 47-oriented language signaling, including wlangb-style fields for more precise locale handling..

Why it matters

language.bcp47 is only defined from 2.6-202204 onward. Used against an earlier version it is not valid, and a consumer below 2.6-202204 treats it as an unknown field.

How to fix it

Target OpenRTB 2.6-202204 or later when you send language.bcp47, and make sure the value matches the type and any enum the specification defines for it.

Paste your bid request into the tester and select OpenRTB 2.6-202204 to see whether this rule fires against your payload.

Reference

• Specification section: Sections 3.2.1, 3.2.16, 3.2.18, 4.2.3
• Source: OpenRTB 2.6 Appendix B: Version 2.5 to 2.6

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