Merge two Trailhead accounts into one using the self-service merge feature. This article
covers step-by-step merge instructions, what to do if you can't access the old account,
and how to update your email address after merging.
After a successful merge, your Salesforce certifications should be visible on your Trailblazer profile within 24 hours. Trailhead badges, points, and ranks also transfer.
If certifications are missing after 24 hours:
For more details, see After Merging My Trailhead Accounts — What Happens to My Certifications?
If you can no longer log in to the account you want to merge (for example, after leaving an employer):
After merging, your email address may need to be updated on both Trailhead and
your certification account:
Trailhead email: Go to Settings on your Trailblazer profile and update your email address.
Certification email: Log in to Trailhead Academy and update the email in your account settings. Allow up to 24 hours to sync.
For a full guide to updating your certification email, see Update Your Email Address on Your Salesforce Certification Account.

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