Yes, every volunteer must be in the V4S Users table. When a new volunteer is registered either from V4S Kiosk or V4S Personal, a record is automatically created for that user in the V4S Users table. You can also, upload lists of volunteers into the V4S Users table,
Volunteer Coordinators / Administrators that login to V4S Kiosk also need to be in the V4S Users table. For these users, ensure that you have Checked the isKiosk field in the V4S Users page.