--- /dev/null
+<a name="VarSESSIONID"></a>
+
+### <a name="SESSIONID -- unique ID for this"></a><a name="SESSIONID -- unique ID for this "></a> SESSIONID -- unique ID for this session
+
+- Syntax: `%SESSIONID%`
+- Expand to: `941fd3d797f64451cc06ffcd03f96779`
+- Related: [[TWikiUserAuthentication]], [[AUTHREALM|Main/WebHome#VarAUTHREALM]], [[SESSIONVAR|Main/WebHome#VarSESSIONVAR]], [[LOGIN|Main/WebHome#VarLOGIN]], [[LOGOUT|Main/WebHome#VarLOGOUT]], [[SESSION_VARIABLE|Main/WebHome#VarSESSION_VARIABLE]]