Google Ads launches beta for supplemental conversion data

Google Ads launched a beta program this week that allows advertisers to supplement website conversion data with information from backend systems. This new feature enables marketers to combine conversion signals gathered via Google tags with transaction data originating from customer relationship management (CRM) systems, order databases, and e-commerce platforms. Advertisers can integrate an additional data source into an existing website conversion action using either Google Ads Data Manager or its corresponding API. The beta is intended to enhance, not replace, website tagging by facilitating the flow of conversion data from backend systems into the same conversion actions used for campaign measurement and optimization. This development aims to address conversion measurement gaps by merging Google tag data with first-party data from backend sources, potentially recovering conversions missed due to browser restrictions, privacy settings, or ad blockers. Google states that integrating tag-based measurement with backend conversion data can lead to a more complete understanding of conversions and improved campaign performance, offering more comprehensive data for automated bidding and simplifying data integration. The system deduplicates conversions between tag-based collection and the supplementary data source using transaction IDs to prevent duplicate reporting.