As per title, I am just curious why WeBi would prompt us to select 'End Date/Time' when Run Object 'Once' is selected. I mean if the object is running one time, why do you need an End Date/Time?
Forgive me if this is a silly question. Only reason I can think of is if the report fails to run the 1st time, it will continuously re-run until it succeeded the first time or until End Date/Time. But I am not sure if this logic holds true.