2169777 - Managed System configuration - Single Sign On Setup fails

You're performing the Managed System Configuration for a system in the Solution Manager, and the step "Single Sign On Setup" fails with errors:

"<SID>/<system type>: Activity 'Single Sign On Setup' ended with errors."

The detailed log says the following:

• SAP Solution Manager 7.1 managing an ABAP stack managed system.
• SAP Solution Manager 7.2 managing an ABAP stack managed system.

"A failure occured while importing Java SSO ticket certificate in ABAP stack" "Found SID for SSO ACL entry" "Found login.ticket_client for SSO ACL entry" "The read entry permission on TicketKeyStore/SAPlogonTicketKeypair-cert was given to sap.com/tc~webadministrator~solmandiag/servlet_jsp/smd/root/WEB-INFO/lib/SetupLib.jar" "The TicketKeyStore/SAPLogonTicketKeypair-cert was successfully read" "A failure occured while importing ABAP SSO ticket certificate in ABAP stack" "!! Exception : INTERNAL_ERROR" "A failure occured while importing JAVA SSO ticket certificate in ABAP stack" "com.sap.mw.jck.JCO$AbapException: (126) INTERNAL_ERROR: INTERNAL_ERROR
at com.sap.mw.jco.MiddlewareJRfc$Client.execute(MiddlewareJRfc.java)
at com.sap.mw.jco.JCO$Client.execute(JCO.java)
at com.sap.mw.jco.JCO$Client.execute(JCO.java)
at com.sap.smd.agent.plugins.remotesetup.ConfigurationServices.addTrustedIssuer
at com.sap.smd.agent.plugins.ConfigurationServices.setupAbapSSO" , KBA , SV-SMG-INS-DIA , Configuration of Root Cause Analysis related infrastructure , Problem