30.1.1 The Job Number field can be configured to generate the next sequential number through the JobCreator. Each of the JobCreators have different configurations depending on how you setup the jobs. It can support various combinations from a simple 2 digit numbers to a complex 10 digit numbers. It supports different types that affects the sequential numbering logic such as "T" for text, "N" for number, "C" for counter and others.
Note, if you've just started to implement a job numbering system, make sure to take the time to consider the limits of the job numbers. Changing job number formats after you have already entered job numbers may cause the JobCreator to not work properly.