Microsoft Advertising has launched Supplemental Feeds globally, enabling merchants to update product information quickly and efficiently—without having to re-upload their entire product catalog.
Key highlights
Advertisers can now modify specific product details—such as titles, descriptions, labels, sizes, colors, or promotion IDs—independently of the main feed.
Supplemental data overrides the primary feed. To remove it, merchants must either upload empty fields or delete the supplemental feed.
Only one supplemental feed is allowed per language and feed label/country of sale combination.
Feeds can be uploaded manually via Merchant Center, FTP/SFTP, or through a URL download.
Why it matters
With peak shopping season approaching, maintaining accurate and up-to-date product data is essential for retailers. Supplemental Feeds reduce manual effort, minimize errors, and help keep listings competitive when shopper activity is at its highest.
Other Microsoft Ads updates
This rollout is part of a larger set of enhancements, including:
Performance Max upgrades: New budget forecasts, asset-group-level reporting, and customer acquisition goal options.
Bulk bid editing for Lodging campaigns, enabling faster property group management.
UET Consent Signal reporting, providing clearer compliance insights.
MFA-free inventory across Monetize, Invest, and Curate to remove “Made for Advertising” content.
Bottom line
These updates underscore Microsoft’s focus on efficiency, transparency, and quality control, giving advertisers more powerful tools to optimize campaigns ahead of the holiday rush.