When one or more columns of audit log data exceed the specified column length limits, the column data is truncated to fit. Specifically, the data is truncated to the specified limit, less three characters. An ellipsis (...) is then appended to the column data to indicate truncation has occurred.
In addition, the NAME column of that audit record is prepended with the string #TRUNCATED# to facilitate querying of truncated records.
Identity Manager assumes UTF–8 encoding when it computes where to truncate messages. If your configuration uses encoding other than UTF–8, there is a chance that truncated data may still exceed the actual column size in your database. If this happens, the truncated message does not appear in the audit log and an error is written in the system log.