Groovy error for status update notification setup

Hi I am trying to use the below scripts for status change notification but getting '\n error. I have no clue on how to resolve it since I am non-techie. any help would really be appreciated. Thankyou

def objectCode='HRHelpDeskRequestVO'
def parentSR = HRHelpDeskRequest
def recipientPartyId = parentSR?.PrimaryContactPartyId; //PrimaryContactPartyId
def messageText = 'Oracle Cloud Service Request ' + parentSR?.SrNumber + ' - ' + parentSR?.Title + ' has been updated. Please click the link below to goto the system and click the Reply button to respond if required.' + '\nhttps://fa-euds-saasfaprod1.fa.ocs.oraclecloud.com/fscmUI/redwood/helpdesk/edit-hrhd?flowName=employee&srId='