Reprocessing reports could be useful when you're customizing reports and your recent modifications are not yet visible on the current report layout in your application.
To reprocess the reports follow these steps:
In Site Admin, install Developer tools plugin.
How to reprocess
1. Go to Site Admin > Reporting > Reprocess
2. Select Reports radio button.
3. Select Application, Report, Filter, and Date to select which objects you need to reprocess.
4. Click Reprocess.
5. Confirm by clicking on OK to finally reprocess the selected items.
Note: The selected data will now be reprocessed next midnight or next time it is requested on demand.