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Microsoft detailed Microsoft Curate, which packages curators' proprietary data and digital assets with premium supply for programmatic buyers through a centralised platform, with Copilot in Curate for reporting and troubleshooting.

Microsoft deprecates its public Prebid Cache (formerly AppNexus, prebid.adnxs.com/pbc), which Prebid.js and Prebid Server set-ups used to store and retrieve video creatives. Sites relying on it must move to another cache; Microsoft recommends local client-side caching.

Microsoft unveiled Copilot Checkout and Brand Agents, with Urban Outfitters, Anthropologie, Ashley Furniture and Etsy sellers available at launch. Brand Agents became available for Shopify merchants.

MarTech: Microsoft Ads gets new granular asset-level reviews

Microsoft is retiring Microsoft Invest, the DSP it acquired with Xandr, on February 28, 2026, and names Amazon DSP as the preferred partner for advertisers moving off it.

MarTech: Microsoft Ads releases AI-powered asset recommendations for video and display ads

Performance Max became globally available to all advertisers with no restrictions on enablement, across Microsoft Advertising online, Editor and the API, with support in Search Ads 360.

Microsoft Advertising renamed the Xandr products it acquired as Microsoft Monetize, Microsoft Invest and Microsoft Curate.

Microsoft Advertising launched Performance Max in open beta worldwide as a new automated campaign type.

Microsoft announced a solution to monetise AI-powered chat experiences, bringing ads into the new AI-powered Bing and Edge preview.

Microsoft began transitioning the majority of display, native and in-stream video inventory on MSN, Outlook and Microsoft Casual Games to its in-house technology and sales teams, making it available through Monetize SSP.

Microsoft completes its acquisition of Xandr from AT&T.

AdExchanger: Microsoft Ads Chief Rob Wilk On Why Advertising Is The Company’s ‘Newfound Religion’

Microsoft agreed to acquire Xandr from AT&T, adding a data-enabled advertising platform connecting marketers and media owners. Microsoft confirmed on the same post that it completed the acquisition on 6 June 2022.