Once a Schedule has been created for a report, you can edit and adjust it at any time.
1. Navigate to the Reporting Portal
2. From the main menu, select View
3. Click on Schedules from the drop down.
4. Click on the edit icon next to the relevant Schedule
5. Make the necessary changes to dates, frequency etc.
6. Click Save
7. Update the Title & Description if required
8. Click OK
To have a scheduled report emailed, or to receive an email advising the report is ready you will need to set up Notifications. See this article for a step by step.