In one of our client databases they want the ability to migrate all activities from one record to another (similar to lead > opportunity, but between two custom entities related to grant tracking). They are attempting to use the "Set Regarding" command on the Activities related view, however they receive an error on closed phone calls and tasks (email and appointments are successfully reassigned). Those with the System Administrator role do not encounter this error and can migrate all activities successfully. Is there a particular set of permissions that can be given to these users to enable the same functionality without promoting them to System Administrator? They currently have full access to both custom entities as well as Activities.
Here is a visual of the process:
Open record, view All Activities, select all, choose "Set Regarding"
For System Administrators this is successful.
For all other users, they see this error (log file states "Cannot update Closed or Cancelled Activity")