Google has announced upcoming infrastructure upgrades to the Google Ads API aimed at improving Offline Conversion Import reliability and attribution. The rollout begins in April 2026 and will not introduce breaking changes, though minor attribution fluctuations may occur.
Key improvements include:
- Better attribution and fallback recovery allowing some expired GCLIDs and earlier clicks to be attributed, reducing common upload errors and increasing attribution rates
- More flexible import requests enabling manager and client accounts to upload conversions across accounts more easily, lowering authorization-related errors
Advertisers using offline conversion tracking should monitor attribution trends as these updates roll out. Learn more in the official announcement and review guidance on improving conversion data quality.
These changes align with Google’s broader push to enhance measurement accuracy and data usability.
Read the official announcement here: Upcoming Improvements to Offline Conversion Imports.