How to verify if an user is part of a given group?

Hello,

i am trying to verify if an user is part of a given group. if the user is present the process model continue but if it's not the process stops in this script task.
The variable that saves the result is Boolean.
Why it’s not write the False result?

Regards,
Claudiu

OriginalPostID-226954

OriginalPostID-226954