Category:Troubleshooting
Last Updated:2011-09-07
These errors occur when an LDAP ADD or MODIFY attempts to set a duplicate value on an indexed (unique) attribute. Search the log file for "Entry_Exists" or "value exists" to identify the source records that are throwing this error. Common attributes that throw this error are userid, proxyaddresses, samaccountname, alias etc. Any destination attribute that is required to be unique will throw this error if an LDAP Modify (or Add) attempts to set a duplicate value. Unfortunately, the error text returned by LDAP does not identify the attribute causing the problem in this Add/Mod. To identify exactly which attribute is throwing the error, use a custom map file to comment out suspect attributes one at a time. A mapping can be commented out by placing a # as the first character in the line. After commenting out a mapping, run the Sync. If the error disappears, you have identified the problem attribute. The duplicate value must be modified at the source.