CA ACF2 message ACF82908 when implementing 8 character userids under z/OS 2.3

Document ID : KB000122706
Last Modified Date : 17/12/2018
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Issue:
Currently at z/OS 2.3 and have CA ACF2 r16 PTF RO96905 implemented to support
eight-character TSO userids.  Encountering the following message when trying to
logon with an eight-character TSO ID:

ACF82908  ACF2, LOGONID TOO LONG

Reason:  
You entered a logonid that is longer than the maximum length.
Resolution:

Resolution was to add LOGON USERIDMAX(8) to SYSx.PARMLIB member IKJTSOxx.


For details on the new IKJTSOxx parmlib member USERIDMAX parameter see 'Summary of changes for z/OS Version 2 Release 3 (V2R3)'.