Does Shareplex log any info in the target database as to when the transaction (DML, DDL, etc) originated on source?
General information.
Shareplex will not log any such info. The Shareplex Post queue does have that info but once the messages Post to the target, that info is discarded. Starting with Shareplex 7.6 it does log the source SCN of last committed transaction in the target event log (as shown below) but even that does not have details on what table was involved:
Notice 2011-03-28 08:22:43.969765 21768 2585389792 Poster: Last committed SCN 32888828906