Steve,
I tried changing the lifecycle to have the 'lock' option checked however it didn't seem to make a difference. As I'm fairly new to WC (we adopted it last year), my perception of what locking it does is the following: Once a promotion request has been issued, the promotion objects become locked so that they can not be checked out/edited until the promotion request is approved. Is this accurate? I'm trying to get my head wrapped around WC but it's quite the task - my background is mostly in ME, not so much in managing a system like this...