Unable to edit or view Program Schedule
|Knowledge Article Number||000213035|
If you're unable to edit or view a Program Schedule in Marketing Cloud Email, the issue is due to the date set in your Program.
The reason you're unable to manage your Program is because the Calendar Control End Date has a maximum date range of up to 12/31/2030. If the End Date is greater than this date, you'll be unable to edit or view the Schedule.
To resolve the issue, contact Salesforce Marketing Cloud Support and request that the Program End Date be modified to a date that is accepted by the Calendar Control.