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Sep 30, 2026 Microsoft Advertising New features Affects operations

September Updates: HubSpot Integration, LinkedIn Lists, and Optimization Experiments

Microsoft Advertising released updates in September to reduce manual work for advertisers. Key changes include HubSpot integration for tracking campaign performance and automating lead follow-up, increased LinkedIn company list capacity from 1,000 to 10,000 companies for account-based marketing, and general availability of optimization experiments for A/B testing across campaign types. Advertisers must migrate from SOAP API to REST API by January 31, 2027.

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