Google is phasing out offline conversion imports by the Google Adverts API for some builders beginning June fifteenth.
Advertisers and martech suppliers that depend on offline conversion imports, together with enhanced conversions for leads, might want to migrate workflows to the Knowledge Supervisor API to keep away from disruptions.
Particulars. Google notified builders that offline conversion imports utilizing the UploadClickConversions request will cease working after June 15, for accounts that haven’t used the performance within the final 180 days.
The change applies to offline conversion imports and enhanced conversions for leads. Different Google Adverts API operations will proceed functioning usually.


Google says affected builders ought to transfer these workflows to the Knowledge Supervisor API going ahead.
Why we care. Offline conversion imports are essential for measuring leads, gross sales, and different actions that occur exterior the net journey. If integrations should not migrated in time, conversion information might cease flowing into Google Adverts, which can affect reporting, attribution, and automatic bidding efficiency. The replace additionally indicators Google’s continued shift towards centralized, AI-driven information infrastructure tied extra carefully to first-party information and automation.
The larger image. The transfer is a part of Google’s broader push towards centralized information ingestion and automatic measurement infrastructure.
Google describes the Knowledge Supervisor API as a unified ingestion system for sending advertiser information into Google Adverts, together with Buyer Match and conversion imports. The corporate additionally says the newer API affords a greater developer expertise and extra performance not obtainable within the present workflow.
Between the strains. As attribution turns into extra privacy-focused and more and more depending on first-party information, Google continues consolidating advertiser instruments into fewer techniques which can be extra tightly related to automation and AI-driven marketing campaign merchandise.
For builders and platforms, the migration might require updating integrations, rebuilding import processes, and testing new ingestion workflows forward of the deadline.
What’s subsequent. Builders can proceed utilizing the Google Adverts API for all non-offline conversion operations.
Nevertheless, any workflows involving offline conversion imports needs to be migrated to the Knowledge Supervisor API earlier than June fifteenth, when the prevailing performance begins failing for affected accounts.
First noticed. This replace was noticed by PPC Specialist Arpan Banerjee who shared the comms he obtained on LinkedIn.
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