Using the Watch Program parameter you can write an exit program. In order to ensure this exit program is executed set the Watched message queue, Message queue field, type *SYSOPR.
Within the exit program you can write a logic to send an email when the CPF0907 is encountered. This will ensure that an alert is sent to all the ppl irrespective of operator missing the error message.
Please find the link on code400 containing sample program.
Also available is the Message Monitor function within Management Central, I have a monitor currently that is looking for similar CPF messages, when that message is encountered on the QSYSOPR message queue I have a trigger that is executed that sends break messages to multiple users and emails to a distribution group.
Just another option,
Hope this helps,