One of our sites is closed Fridays. We have a 4 day calendar set up. We have that calendar set up in Shipping/Receiving with warnings selected for Need By and Due Date. When I look at Where Used for that calendar I do not see that site. Also, I can create POs and enter a Friday due date without warning. What am I missing here? Do the calendars only apply to suggestions and not manually created POs? Is there some other step to make this work? Thanks in advance.