To modify an LDAP entry attribute, use ldapmodify. For example, to change the status of user with uid=tchang, use ldapmodify as shown:
dn:uid=tchang,ou=people,o=sesta.com changetype: modify add: objectclass objectClass: icsCalendarUser add: icsStatus icsStatus: active
If your site is using the LDAP CLD plug-in, do not attempt to move a user’s calendars from one back-end host to another by changing the value of icsDWPHost, using csattribute. Modifying icsDWPHost does not cause the calendar to be moved to the new back-end host. For instruction on how to move a calendar from one back-end server to another, see Managing User Calendars.