Troubleshooting
Problem
You follow the instructions to add EYU9XENF to the TSO authorized command table. But, when you enter the command from ISPF as "TSO EYU9XENF" you receive the following message text: Authorized command 'EYU9XENF'. Return code = 20 . Reason code = 56 . Invocation error - System error encountered invoking authorized command 'EYU9XENF'.
Symptom
If the command is invoked from TSO READY outside of ISPF, the following messages are received:
IKJ5664I EYU9XENF ENDED DUE TO ERROR+
If you enter "?" for additional information you receive:
IKJ5664I SYSTEM ABEND CODE 047 REASON CODE 00000000
The Abend047 indicates an unauthorized program issued a restricted SVC .
IKJ5664I EYU9XENF ENDED DUE TO ERROR+
If you enter "?" for additional information you receive:
IKJ5664I SYSTEM ABEND CODE 047 REASON CODE 00000000
The Abend047 indicates an unauthorized program issued a restricted SVC .
Cause
The message is coming from the TSO/E command service facility IKJEFTSR as part of the TSO command processor. The TSO/E Programming Services manual documents the return and reason codes from IKJEFTSR . The return code 20 and reason code 56 indicate the command is authorized but could not be found in an authorized library.
The library in STEPLIB would lose authorization if a non-authorized library was also in the STEPLIB concatenation.
The library in STEPLIB would lose authorization if a non-authorized library was also in the STEPLIB concatenation.
Resolving The Problem
Ensure that all libraries in the TSO users STEPLIB concatenation are authorized. You can verify the active STEPLIB by issuing a TSO LISTALC command to see the library allocation.
Alternatively, invoke EYU9XENF using a TSO batch job as follows:
//EYU9XENF JOB (nnnn),'userid',CLASS=A,REGION=32M,MSGCLASS=A,
// NOTIFY=userid
//EYU9XENF EXEC PGM=IKJEFT01,
// REGION=2M,DYNAMNBR=99
//STEPLIB DD DISP=SHR,DSN=&HLQ..SEYUAUTH
//SYSTSPRT DD SYSOUT=*
//SYSTSIN DD *
EYU9XENF
/*
[{"Type":"MASTER","Line of Business":{"code":"LOB70","label":"Z TPS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"Usability","ARM Category":[],"ARM Case Number":"","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"5.1;4.2;4.1;3.2;3.1"}]
Product Synonym
CICSPlex SM CICSPlexSM CPSM CP/SM
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Document Information
Modified date:
24 August 2026
UID
swg21047577