> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Mark Wilson
>
> All,
>
> From the research I have done I agree with Walt in that it¹s
> a TSO restriction.
>
> If you logon (Full screen mode) and enter a numeric Userid
> you get the not valid message, press F1 and there is the
> message from TSO.
>
> Hence, my thinking I may be able to get at the field in a TSO
> EXIT and bypass the numeric check.
>
> The fact that ACF2 supports it means it can be done and from
> what I am seeing there are no issues with MVS commands, INTRDR, etc.
>
> Looks like I go back to the manuals to see if I can figure this out.
>From the z/OS 1.9 MVS JCL Reference manual, for the JOB statement:
===== Begin paste ==========
20.1.2 Name Field
Code a jobname on every JOB statement, as follows:
Each jobname must be unique.
The jobname must begin in column 3.
The jobname is 1 through 8 alphanumeric or national ($, #, @) characters. If
your system uses ANSI tapes, the jobname must contain only alphanumeric
characters; it must not contain national ($, #, @) characters.
The first character must be alphabetic or national ($, #, @).
======== End paste ==========
Thus, it appears that jobnames beginning with a numeric userID would fail
immediately.
-jc-
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