Hi people!
I solved this problem using the ENTRY function as below:
DEFINE VARIABLE dt-prazo AS DATE NO-UNDO.
ASSIGN dt-prazo = 10/17/2024.
MESSAGE ENTRY(MONTH(dt-prazo),"JAN,FEV,MAR,ABR,MAI,JUN,JUL,AGO,SET,OUT,NOV,DEZ")
VIEW-AS ALERT-BOX INFORMATION BUTTONS OK.
this way will show the month like "OUT".
I hope that is functional for you!
Regards...