Using the Question Mark Character
In system-generated fields, which have a green background or contain a green asterisk depending on the theme, you can use the question mark (?) character to fill in and increment after a prefix. For example, if you specify JB?, in a Job Number field on a Job Orders form that uses this functionality and then save, the entry is expanded to JB00000001. If you add another record with JB?, it is incremented to JB00000002, and so on.