Database Replication error 3521

[MattHolbrook]

I'm somewhat new to the Microsoft Jet aspects of Access, so I am looking for some help.<br><br>I am supporting an Access-based system that consists of 4 databases that are Design Masters, which are replicated and distributed to remote users.&nbsp;&nbsp;Data is imported to the DM databases from an AS/400, while the remote users do their own updates and then synchronize periodically.<br><br>The error 3521 &quot;Two members of the replica set cannot be synchronized because there is no common point to start the sychronization&quot; occurs frequently, and I am unable to determine why specifically.&nbsp;&nbsp;I have checked several reference books, even Microsoft's web site, but there is nothing that jumps out.&nbsp;&nbsp;The only possibility is the way compaction is being done: the &quot;gatekeeper&quot; (as she is called) compacts each DM database separately after importing the AS/400 data.<br><br>Any clues or tips would be greatly appreciated.