Contact list field data is not appearing on my computer
You can only synchronize the data in a custom contact list field with a text field in the email application on your computer. For example, you cannot add a contact's birthday to a custom contact list field on your BlackBerry® device and synchronize it with the email application on your computer, because the birthday field is a date field in the email application on your computer.
Next topic: My contact pictures keep changing
Previous topic: Troubleshooting: Contacts