openrtb.3.0.ads_cert

What it means

OpenRTB 3.0 introduced inventory_authentication.ads.cert, which openRTB 3.0 added signed bid request and inventory-authentication guidance via ads.cert..

Why it matters

inventory_authentication.ads.cert 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 inventory_authentication.ads.cert, 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: Inventory Authentication
• Source: OpenRTB 3.0 final specification

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