Google’s Data Manager API now supports Google Ads call conversions and introduces row-level diagnostics. Advertisers can send call conversions by setting the new call_info field on events. This field logs when a call starts and identifies callers using hashed phone numbers.
The update also enhances diagnostics by highlighting which records had processing issues. ErrorCount and WarningCount now include a record_indices field, identifying problematic records. This allows advertisers to pinpoint and fix errors or warnings in their data submissions.

Another addition is the lead_id field, enabling advertisers to send Google-generated IDs from lead forms with their conversions. Although attribution with lead IDs is not yet available, using existing identifiers can ensure proper event attribution until it is supported.
For more details, read the official announcement here: Data Manager API now supports Google Ads call conversions and row-level diagnostics.