Scheduling new posts error

Helen Cummings I think you first have to go to : Left Navigation - Site Content - site pages library . There you can find the several pages (every news post IS a page). 

Pls. click in the top menu bar of that Pages library on that button "Schedule". Then there is a window and are asked to activate the scheduling for this library. By clicking OK, each of your pages has also to be activated on that scheduling. 

So: pls. select one of your pages - click again on that upper button "Schedule". In the Details panel on the right you can activate now the scheduling for this selected page, activate a certain date and time. And there you are! So there are 2 steps to activate the scheduling: step 1 is the activation in the whole lbrary, step 2 is selecting a page and activate it by clicking once again the schedule button and defining the date &time details in that page details. Hope that helps! greets from Eva.