This field makes it possible to define a logical condition. If the evaluation of this condition returns a wrong value (i.e. null), the recipients line is not concerned by the event.
It should be noted that, in addition to variables related to the event context, the [L]COND variable grid is also available, thus making it possible, for any given line, te refer to the condition of line number N (N being the index).
For instance, if a condition is expressed on the first line of the grid, and, on the second line, the expression not [L]COND(1) is used, it means that the recipients of the second line will be taken into account if the condition of the first line is wrong.