This step only appears if your Job Cost implementation is configured to track categories. If so, this step of the wizard requires you to identify which of the six Prolog Budget Groups the JC Category field corresponds to. Some options may be disabled if they are not part of your Prolog Budget Code Structure or if another field has already been mapped to a Budget Group.
Category – Associated Prolog Field
Setup > WBS Relationship Wizard – Category Field – Associated Prolog Field