The properties file name must match the database for the source or target.
Add the list of user-defined datatypes to the properties file.
Set the parameters for the user-defined datatypes.
When you generate a workflow, the PowerCenter Integration Service checks for user-defined datatypes in the sources and targets. It uses the conversion information in the properties file to convert user-defined datatypes in sources to PowerCenter datatypes and convert PowerCenter datatypes to user-defined datatypes in targets.