Job goes to the message waiting status when system needs user input like
Eg: PF is compiled with intial number of records 10000. The job goes to the message waiting status while trying to add more than 10000 records.
Status will be the MSGW while entering the commands
WRKSBMJOB or WRKACTJOB
Using the DSPMSG Command, we can see the messages
Need to give the input based the message like C/G/I