Hi - Is there an action history section of Marketo where I can see the day/time a lead list was deleted from Marketo? Thanks!
Not for the moment.
See here what coming up on the roadmap: https://nation.marketo.com/ideas/1034#comment-22357
It seems to me that your need will be covered (asset deletion).
While we're all waiting for the audit trail to become publicly available, I should note that you can actually contact Support about getting a manual log of changes for your own auditing purposes—I've had to use this in several cases and they can, in fact, say when (and who!) removed an asset.
- (Also) Courtney