AgileApps Support Wiki Pre Release

ISBLANK

From AgileApps Support Wiki

The ISBLANK function determines if a text field is blank. If the field value is blank, the function returns TRUE. If the field contains data, the function returns FALSE.

Syntax
ISBLANK(field)
Return
TRUE or FALSE
Examples
ISBLANK(last_name) = TRUE. Returns TRUE if the last_name parameter is left blank.