Boolean Data Type in Dynamics NAV
Indicates true or false.
For usability reasons, Boolean values are sometimes shown as Yes or No. For example, the two possible values for the InsertAllowed page property are Yes and No.
The values that are shown are based on the regional format that is set on the computer. For example, on a computer that has the regional format set to Danish (Denmark), the Boolean values are shown as Ja and Nej instead of Yes and No.
You can use the FORMAT Function (Code, Text) to specify how Boolean values are shown.