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Microsoft Advertising · Status at source date: Newsletter archive

Microsoft Advertising increases the PMax search themes limit to 50

Written by Paid Media Collective
IN BRIEF

Microsoft Advertising has increased the search themes limit for Performance Max campaigns from the previous cap of 50 to 50. Search themes can be combined with LinkedIn profile targeting, audience signals, and Impression-Based Remarketing to guide campaign targeting.

Original newsletter image: Microsoft Advertising increases the PMax search themes limit to 50
Via the Paid Media Collective newsletter. Original visual creator unverified.View full-size image

What changed

A full blog post with additional updates is expected on January 14.

THE COLLECTIVE PERSPECTIVE

Why it matters for advertisers

For you, this means more granular control over how Microsoft PMax campaigns understand and target relevant search behaviour.

Perspective from the original PMC newsletter.

Sources & contributor credit

  1. Newsletter coverage · Paid Media Collective newsletter

    Original newsletter text, contributor labels and media for this update.

  2. Source referenced in newsletterLinkedIn

    Linked from the original newsletter. The source publication date has not been independently confirmed.

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Attribution evidence and limitations

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FOLLOW THE PEOPLE BEHIND THIS UPDATE
Published on this site

This update reflects the dated source reporting. Availability may have changed. Further coverage of this same development will be added to this page.

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Original newsletter text and archive evidence

Microsoft Advertising increases the PMax search themes limit to 50

Microsoft Advertising has increased the search themes limit for Performance Max campaigns from the previous cap of 50 to 50. Search themes can be combined with LinkedIn profile targeting, audience signals, and Impression-Based Remarketing to guide campaign targeting. A full blog post with additional updates is expected on January 14. For you, this means more granular control over how Microsoft PMax campaigns understand and target relevant search behaviour.

Source captured . No explicit first-contributor label was provided for this update.

Newsletter coverage (1)📰 🦸‍♂️ Paid Media News (Week 2) 🦸♀️ · 12 Jan 2026