Hi @Mário Pombal ,

I copied your expression, but got another error:

Cannot apply '-' operator to 'Date' together with 'Integer'.

The error was on these lines:  In OutSystems, CurrDate() gives you a date value, and you can’t just do “date – number” to subtract days.  You have to use the built-in date functions instead, for example: 

AddDays(CurrDate(), -3)

The final expression would be:

• (  
•   FiltroDataSelecionado = "HOJE"  
•   and  
•   Appointment.Date = CurrDate()  
• )  
• or  
• (  
•   FiltroDataSelecionado = "SEMANA"  
•   and  
•   Appointment.Date >= AddDays(CurrDate(), - ( DayOfWeek(CurrDate()) - 2))  
•   and  
•   Appointment.Date <= AddDays( CurrDate(),  8 - DayOfWeek(CurrDate()))  
• )  
• or  
• (  
•   FiltroDataSelecionado = "MÊS"  
•   and  
•   Month(Appointment.Date) = Month(CurrDate())  
•   and  
•   Year(Appointment.Date)  = Year(CurrDate())  
• )