A log file can only tell you what was produced, not what should have been produced. The mere fact it may not match the data source is only indicative of errors if you know that all those data should have been included. Given that mailmerge outputs are often filtered in various ways, having a file that only tells you what got output is but a small part of the story. Any mailmerge output is its own log file in that sense.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]