Observed Signal · Feb 17, 2026 · Technical Release · Source: https://www.blogger.com/feeds/7815614485808579332/posts/default?category=google_ads_api&orderby=published · Impact: 4/5 · Sentiment: Positive
Google Enhances Data Manager API for User List Management
Google announced v1.5 of the Data Manager API, adding end-to-end user list management and expanded audience ingestion options. The update introduces a UserListService that supports create, retrieve, update and delete operations for UserLists, and a PartnerLinkService to manage secure connections between advertiser and data partner accounts across Google Ads and Display & Video 360. Audience ingestion now accepts additional identifiers including User IDs for Customer Match, and diagnostics have been extended with status reporting specific to User ID ingestion. The blog post includes links to Customer Match and upgrade guides, Partner Link documentation, support contact information, and a partner interest form. The announcement was posted by Lindsey Volta on behalf of the Data Manager API Team.
Technical release from Google (major platform) adds native user-list CRUD, partner link management, and User ID support for Customer Match — changes that affect identity, audience ingestion and integrations across Google Ads and Display & Video 360.
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Key Takeaways & Evidence Grounding
- Google released v1.5 of the Data Manager API.
- UserListService now enables create, retrieve, update and delete operations for UserLists via the Data Manager API.
- PartnerLinkService was introduced to manage secure connections between advertiser and data partner accounts across Google Ads and Display & Video 360.
- Audience ingestion now supports additional identifiers, including User IDs usable for Customer Match in Google Ads and Display & Video 360.
- Diagnostics for ingestion requests now include status reporting specific to User ID ingestion.
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Related Market Signals & Shifts
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Google Data Manager API Unifies Audience Management
Google published an Ads DevCast episode featuring Melissa Ng, Product Manager for the Data Manager API, introducing the Data Manager API as a unified ingestion point for audience and conversion data across Google advertising products. The API lets partners, agencies and advertisers send first-party data to multiple Google ad products (Google Ads, Display & Video 360, Campaign Manager 360, Google Analytics and others) in a single call, standardizing field schemas across downstream use cases. Google highlights privacy-by-default confidential matching using a Trusted Execution Environment (TEE), forthcoming Ads UI diagnostics for API health, and migration guidance. Early partner results cited include Treasure Data reporting 2x faster advertiser onboarding and an 80% reduction in engineering effort; a joint case study noted an advertiser spent over $1M annually on maintenance prior to migration.
Data Manager API adds RemoveAllAudienceMembers and warnings
Google released an update to the Data Manager API (2026-07-30) that introduces a RemoveAllAudienceMembers method to clear members from user lists (optionally scoped by timestamp), adds field-level ingestion warnings for validation issues on optional fields, and expands AddressInfo for Google Analytics events to include address_line, city, and administrative_area. The update clarifies that optional-field validation issues will produce field_warnings while required-field failures still follow a fast-fail model. The release also notes that the user_data field can satisfy identifier requirements for multi-source events sent to web data streams. Documentation links, integration guides, new Data Manager API agent skills on the Google Skills GitHub repository, and support/contact channels are provided in the announcement.
Google Highlights Data Manager API on Ads DevCast
Google’s Ads Developer Relations team published a new Ads DevCast episode featuring Data Manager product managers Xuezhu Li and Stephen Chang that explains the Data Manager API. The API offers a "send once, fan out everywhere" architecture to push first-party data to multiple Google destinations (CM360, DV360, SA360, GA4), a Status API for unified request-tracking and pipeline health monitoring with row-level error reporting, and Confidential Match which uses Confidential Compute and Trusted Execution Environments (TEEs) to protect sensitive signals. The episode also outlines four reasons to adopt the API (performance, privacy, new features, developer experience) and invites developer feedback via a survey, YouTube, Discord, and LinkedIn channels.
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