The Titles available for selection on Customer and Vendor records are those defined in Node Preferences > Data Types.
Sample Data Type >Title Type preferences:
Editing Titles in Prism
Titles are one of the resources that are based on a local sequence in RIL Oracle database, not a global sequence. As a result, it is important to make any changes, including adding or removing records, in either Prism or RIL, but not both systems. If you make some changes in Prism and some in RIL, the changes may not be written to the database correctly. For example, if you mistype a title in Prism, say, "Drr." instead of "Dr", then the mistyped entry will still be replicated to RIL and added to the list of titles. If you edit the title in RIL to the correct form of "Dr.", then the database in Prism will show two entries: Drr. and Dr.