Groovy script for notification when SR is ORA_SVC_CLOSED

Summary:

Hello, I need to send a notification when an SR move from status Resolved to Closed,

I try to write a groovy with bot triggers Before update and Before insert and enable the Notification preferences

if (isAttributeChanged('StatusCd')&& StatusCd == 'ORA_SVC_HRHD_CLOSED') {
try {
def recipientPartyId = PrimaryContactPartyId
def messageText = 'BLA BLA BLA.'

    if (recipientPartyId) {

      def map = new HashMap();

      map.put("Channels", ["ORA_SVC_EMAIL", "ORA_SVC_BELL"]);

      map.put("MessageText", messageText);

      map.put("ObjectCode", "HRHelpDeskRequestVO");

      map.put("ObjectId", srId);

      map.put("RecipientPartyId", recipientPartyId);

        adf.util.sendNotification(adf, map)

} else {
println("No Assignee associated with this SR")
}
} catch (e) {