I would think that the easiest way would be to write a script that uses the ticket open api, and then run it on whatever schedule you want it run on (daily, weekly, etc) via cron or windows task scheduler.I might have to write a plugin to do something like this... /adds that to his list of things to do.

There is duplicate functionality in the Merge Mod / Plugin by @[deleted]01.I've tested the mod, and found it works well. I was a little concerning using the mod would mean I would have troubles later when updates to the OsTicket core came out later, in particular relating to the database change. However, the database change is minor and from memory, I found it could be add/removed without much trouble at all if you know what you are doing with MySQL databases.Here is the URL to the mod: https://github.com/osTicket/osTicket/pull/3768Development has started on changing this mod into a plugin, which should ease the worries about this not causing troubles when trying to upgrade OsTicket.Here is the URL for the plugin: https://github.com/Micke1101/OSTicket-plugin-MergingAnd the forum discussion for it is here: http://forum.osticket.com/d/discussion//plugin-mergingLast I saw, this wasn't completely working yet, however you may want to check it out further to confirm this.Using the API might not be all that difficult either.