Full Answer

The February 2026 migration consolidated three separate offline import methods — manual CSV upload, API-based GCLID matching, and CRM connector imports — into a single Google Data Manager interface. The practical impact hits any business sending CRM events (MQL, SQL, Closed Won) back into Google Ads for bid optimisation.

Three things changed at once. First, GCLID-only import is now the legacy path — Enhanced Conversions for Leads, which matches on hashed email rather than click identifiers, is the recommended setup. Second, the older API endpoint used by many custom integrations was deprecated, meaning developer-built pipelines from 2022 or earlier are either broken or running on borrowed time. Third, from April 2026 Google accepts user-provided data simultaneously from website tags, Data Manager, and API connections, creating a real deduplication challenge for stores running multiple touchpoints across online and offline channels.

For WooCommerce stores with offline sales channels — phone orders, in-store pickups, B2B invoiced sales — the CRM-to-Google Ads pipeline needs auditing now. If your integration hasn't been touched since it was built, check whether it's still using the deprecated endpoint and whether your match keys include hashed email. Can I track phone order conversions back to the ad that drove the call? covers the phone-order side of this problem in detail.