Is it possible for the Leave request to override the Day Off defined in Time Model and considered as a Employee Leave request in the system.
This is not possible because when a Time Model has day off as yes, they will not be considered as a working day.
The System works as designed. The Leave Requests will not be taken into into consideration if they have been applied on the day offs.
KBA , AP-RC-BCT , Business Config. Tools (SAP Business ByDesign , How To