The KEYMSG option controls the destination of certain key-related warning messages.
If SYSOUT, the default, is specified, the WER901I expiration warning message and the WER903I unlicensed machine warning message are written to the SYSOUT data set. If NOSYSOUT is specified, the writing of these messages to SYSOUT is suppressed, except for the last 7 days of the warning.
If WTO, the default, is specified, these messages are written to the console with a WTO macro several times a day. If NOWTO is specified, the writing of these two messages as WTOs is suppressed, except for the last 7 days of the warning.
The n1 through n16 parameters are optional routing codes to be used when these messages are written to the console with a WTO macro. 16 is the maximum value for each routing code. The default is to issue the WTO without a routing code.