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Offline conversion tracking

Lesson 5 of 7

Enhanced Conversions For Leads

Sometimes you do not have a click id, the cookie expired, or the lead came in through a channel that did not carry one. Enhanced Conversions for Leads matches on the first-party contact data the user submitted instead.

How it works

  • The form submit captures the user's email (and optionally phone).
  • That data is hashed in the browser before it is sent.
  • When you upload the offline conversion keyed on the same hashed email, Google matches it to the click.
EmailsubmittedHashedin browserMatchedto click

Because the email is hashed before leaving the browser, the raw address is not exposed in the process, which is what makes this a privacy-aware alternative to the click id.

Key takeaway

No click id? Match on hashed email or phone instead. It is set up through GTM with user-provided data, hashed before sending.