Answers.Body: <p>I've never used it and don't know whether it functions with current versions of CiviCRM, but there is (or was) a tool that seems related to what you are asking (although maybe just synchronizing going forward, not for existing contacts):
  <a href="https://civicrm.org/extensions/joomla-2-civicrm-user-synchronization" rel="nofollow">Joomla 2 CiviCRM User Synchronization</a></p>
  
  <blockquote>
    <p>This plugin integrates the Joomla and/or Community Builder
    registration process with CiviCRM.</p>
    
    <p>Newly created Joomla website users (from Joomla or Community Builder
    frontend or backend) will be matched with existing CiviCRM contact(s)
    based on their email address. If no matching CiviCRM contact is found,
    a new one will be created and synchronized with the Joomla user. The
    plugin can also be configured to attatch and assign a new CiviCRM
    activity to the contact.</p>
  </blockquote>
  
  <p>If that's not a good solution, you may be able to prepare or download a CSV file from Community Builder and do an <a href="https://docs.civicrm.org/user/en/4.6/common-workflows/importing-data-into-civicrm/" rel="nofollow">import to CiviCRM manually</a>.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-06-28T21:50:29.177Z
Answers.LastActivityDate: 2016-06-28T21:50:29.177Z
Answers.UserDisplayName: Laryn
Body: <p>We have a very large user database using Community Builder. After installing CiviCRM, it doesn't appear to be recognizing any of the data from Community Builder. Is there a migration tool or procedure to import that data into CiviCRM?</p>
  
Tags: <profile><joomla>
Title: Migrating user data from Community Builder
ThreadText: # Migrating user data from Community Builder
  
  (Asked by: username_0 on 2016-06-28)
  
  We have a very large user database using Community Builder. After installing CiviCRM, it doesn't appear to be recognizing any of the data from Community Builder. Is there a migration tool or procedure to import that data into CiviCRM?
  
  **Tags:** profile, joomla
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2016-06-28. Score: 1
  
  I've never used it and don't know whether it functions with current versions of CiviCRM, but there is (or was) a tool that seems related to what you are asking (although maybe just synchronizing going forward, not for existing contacts):
  [Joomla 2 CiviCRM User Synchronization](https://civicrm.org/extensions/joomla-2-civicrm-user-synchronization)
  
  > This plugin integrates the Joomla and/or Community Builder
  > registration process with CiviCRM.
  >
  > Newly created Joomla website users (from Joomla or Community Builder
  > frontend or backend) will be matched with existing CiviCRM contact(s)
  > based on their email address. If no matching CiviCRM contact is found,
  > a new one will be created and synchronized with the Joomla user. The
  > plugin can also be configured to attatch and assign a new CiviCRM
  > activity to the contact.
  
  If that's not a good solution, you may be able to prepare or download a CSV file from Community Builder and do an [import to CiviCRM manually](https://docs.civicrm.org/user/en/4.6/common-workflows/importing-data-into-civicrm/).
  
  
  ---
  
  