Bpm

I want to add the JobCode field to the QuickJob Entry. I have attached it to the CallContextBpmData.ShortChar01 field. I now need to get it updated to the JobHead table.
I have created a BPM on QuickJobEntry.GenerateJob. Can I update the JobHead table in the BPM by using the setters or must it be custom code. Also how to you decide which method to use. is there documentation that sets out what each method will accomplish.

If you do the steps manually with Trace Logging, you will see the methods that get called to update a Job. That will be a good start.