Using your existing SAP user base to log in with SSO in OutSystems applications can be done by setting up Principal Propagation. Many OutSystems-SAP customers are using technical users to connect with SAP, this mechanism is unsafe and makes your SAP systems vulnerable to inside attacks.
Avoid this by setting up a proper security layer with Principal propagation using the SAP authentication and authorization functionality. B-Synergy can audit your SAP-OutSystems integration in 1 day to help you avoid intentional or unintentional OutSystems SAP security breaches. When we find threats you can implement security measures yourselves or implement the security layer as provided by B-Synergy.