3806208 - ApplicationPermission Security Access Violation for external URL in SAP GUI for Java

• Clicking a button or link in an SAP transaction that attempts to open an external URL raises a Security Access Violation in SAP GUI for Java
• Error message displayed: `Permission to start external process [URL] has been denied`
• Java exception in trace/console:`java.security.AccessControlException: access denied ('com.sap.platin.base.security.ApplicationPermission' 'https://[external-host]/...')`
• The error occurs regardless of which trust level is assigned to the system — all pre-delivered trust levels (including Productive / Fully Trusted) result in access denied
• The same action works correctly on Windows but fails on macOS (MacBook)
• No browser window, popup, or external URL is opened after clicking the button.

• SAP GUI for JAVA
• SAP S/4HANA
• ABAP Platform

macOS, SAP GUI for Java, Security Access Violation, java.security.AccessControlException, ApplicationPermission, openURL, trust level, Trust Level Editor, external URL, popup not opening, button no action, SAPGUIPolicy, policy grant, denied, mac specific. , KBA , BC-FES-JAV , SAP GUI for JAVA , Problem