openrtb.3.0.item

What it means

OpenRTB 3.0 changes the structure around request.item.

OpenRTB 3.0 replaced the 2.x impression-centric payload shape with Item objects inside the request.

Why it matters

A structural shift changes where data lives, so a payload shaped for an earlier version does not map cleanly onto 3.0.

How to fix it

Reshape the payload to the 3.0 layout for request.item.

Paste your bid request into the tester and select OpenRTB 3.0 to see whether this rule fires against your payload.

Reference

• Specification section: Object: Item
• Source: OpenRTB 3.0 final specification

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