Employee Self Serve (ESS) Nova Scotia Health Authority (NSHA) Employee Self Serve (ESS) is a 24 hour-a-day, seven-day-a-week online service allowing employees to view: Bank Account Information. Benefits. Pay advice. Personal information. To get set up for ESS or for password resets please contact the IT HelpDesk at 902-473-3399. Login to SAP-ESS..