Objective:

Add pieces of Contact information in bulk from the import page.
Bulk update Contacts.
Change many Contacts already in Clio at once.

Environment:

Clio Manage

Additional Information:

For more information on how Clio determines a duplicate, please see here.
For more information on how to import Contacts to Clio, please see here.
For more information on how to import Custom Fields to existing Contacts to Clio, please see here.
For more information on how to import Notes to existing Contacts to Clio, please see here.

Answer:

No, the Import Contacts feature only allows new Contacts to be added. If you try to update a Contact by using the same User ID in the Contact Import Template, Clio will make that as a Duplicate error and skip to the next.