It would be nice to have an approval history for each time a request for approval is sent.
Example if I am sent a approval for an item like a change and there is an issue with the change, time is incorrect or something else that would make me reject the change, it would be nice to keep that notice of the rejection and the comments in the change approval history. If the person who created the change then corrects the items in question and resubmits the change for approval then the comments should be blank.
Example.
First round would be :
Denied
comment: the date is not acceptable.
The next round would have:
Approved
Comment: This is good to go.
approval history:
08/15/13 03:00.00 : Denied: the date is not acceptable.