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Note that when LDAP is enabled, you cannot remove user groups, because when LDAP is synchronized, the user groups will be readded. However, you can remove user groups when LDAP is disabled if you disable LDAP, the user groups will be automatically removed.
To import your LDAP user groups, you must provide the information needed to connect to your LDAP server, as described in Connecting to an LDAP server.
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