1:08
Privacy and identity, 2026 edition

Ep 2: TCF v2.3 and disclosedVendors

1:08 · November 11, 2026

Since March twenty twenty six, one missing segment risks limited ads.

Lesson notes

Since March twenty twenty six, one missing segment risks limited ads.

That segment is disclosed vendors, a list of every vendor your banner actually showed.

Why. In version two point two, a zero next to a vendor was ambiguous. Did the reader object, or was the vendor never shown. Version two point three adds a second list of bits, one for shown, zero for not. Say news.example shows fifty vendors, including Google, seven five five. All fifty get a one. The transition ended on February twenty eighth, twenty twenty six. New strings without the segment are invalid. If Google’s check fails, Ad Manager logs error one point four, and the request can fall back to limited ads. Older strings stay valid until readers renew.

Today, open your EU consent error report, look for error one point four, and ask your CMP to confirm version two point three.

Next… what happens without a Google certified CMP.

Go deeper · 4 min readThe Impact of GDPR and CCPA on Ad Targeting

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