Remove time from date time and #FORMAT error in universe 4.0

Hello guys,

So our client having difficulties on removing timestamp from datetime specified on an objects. Their requirement is to have YYYY-MM-DD on their objects. But, when we using Edit Display Format to try change the date into YYYY-MM-DD format, #FORMAT error comeout. Their universe is running on MS SQL 2008 and SAP BO 4.0 SP7. Is there any ways to solve this? Thank you in advance.

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