openrtb.3.0.events

What it means

OpenRTB 3.0 introduced event.pending, event.billing, event.loss, which openRTB 3.0 formalized pending, billing, and loss event notifications..

Why it matters

event.pending is only defined from 3.0 onward. Used against an earlier version it is not valid, and a consumer below 3.0 treats it as an unknown field.

How to fix it

Target OpenRTB 3.0 or later when you send event.pending, 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 3.0 to see whether this rule fires against your payload.

Reference

• Specification section: Event Notification
• Source: OpenRTB 3.0 final specification

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