This documentation refers to an older version of CiviCRM (3.4 / 4.0). The current stable version is 4.1. Please introduce all documentation changes and new material here.

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This page refers to CiviCRM 3.4 and 4.0, current STABLE version.

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CiviCRM 3.4 and 4.0 Documentation

Support and Participation

Developer Resources

CiviCRM books!

Make sure to check out the FLOSS Manual Understanding CiviCRM as well! You can also support this project by ordering a hard copy.

Or support us by buying an eBook or hard copy of Using CiviCRM from Packt Publishing.

What are the rules for matching contacts?

The rule for matching Individual contacts on import is by default first_name AND last_name AND email. Import uses the configured default 'Strict' dedupe rule for each type of contact. You can review and changes these in Administer CiviCRM >> Find and Merge Duplicate Contacts >> Edit Rule(s). See Find and Merge Duplicate Contacts for more information.
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