Point-of-Sale can be set up only if you are selling stock items. Improved security and access control has been added for users to access or start a Point-of-Sale session or shift. You may now link the salespersons (cashiers)  added in the Setup → System parameters → Salespersons menu to users on the Others tab of the Setup → System parameters → Access control  menu. This feature will add more security when users access or start a Point-of-Sale invoicing session.