Adopted authority and batch jobs
You can change the parameters for a batch job when it is running under adopted authority.
When a new job is started, a new call stack is created for the job. Adopted authority cannot take effect until the first program is added to the call stack. Adopted authority cannot be used to gain access to any objects, such as an output queue or a job description, which are added to the job structure before the job is routed. Therefore, even if your interactive job is running under adopted authority when you submit a job, that adopted authority is not used when authority is checked for the objects on your SBMJOB request.
You can change characteristics of a batch job when it is waiting to run, using the Change Job (CHGJOB) command. See Job commands for the authority that is required to change parameters for a job.