activity created by report
Would like to see a report that tells us how many appointments were set and which user set them. This could be accomplished by simply using an Activity report that is already out there (Activities by Contact) and adding the activity's Created by and Created Date fields.

The suggestion may be planned, but there is no timeline on this feature being added.
This suggestion is remaining open and can continue to gather votes and comments!
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Mike Mosley commented
Our organization tracks number of appointments for our advisors, and the ability to see who created the actual appointment would be hugely beneficial. This information is already available if you open the activity itself, so adding it to the report as a filter-able field should be fairly easy to accomplish.