> ## Documentation Index
> Fetch the complete documentation index at: https://auth0.generaltranslation.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshoot Log Event Codes

> Learn how to troubleshoot logging data, including missing, unexpected, or incorrect log event codes.

<div id="post-login-actions-and-social-connections">
  ## Post-login Actions and Social connections
</div>

If you have configured a post-login Action and a Social connection (such as Facebook) on your tenant, you may encounter the following issue.

When a user signs up on a Social connection and your post-login Action fails for that authentication flow, Auth0 logs a "Failed Signup" (`fs`) event. However, Auth0 does create a user profile for this user.

Subsequently, when the user logs in on that Social connection, Auth0 logs a "Success Login" (`s`) event but not a "Success Signup" (`ss`) event.