I'm looking for a way to lock items in a public folder so that only one person at a time can modify them. With a standard relational database it is quite streightforward to lock the record, allow the person editing the data to do their thing and then unlock the record.

I'm not sure if I'm just using the wrong terminology or if the idea of record locking just doesn't exist in the Exchange world. I sure haven't found any documentation about it one way or the other yet.

Thanks in advance,