You can import fields into to contracts in two way. Using ITK or web services. You will need to put the data into our format and then it will be able to be imported. You can go to Ariba Connect and download the documentation for ITK as well as find documentation on web services in our integration documentation. This web services documentation is available via help through the application.
You can also request Ariba consulting services to help if needed.
Sr Product Manager Ariba Contracts