update

When importing a content item that already exists in the target publication, you can use this element to update the content item's source and source ID references.

Syntax
<update
    newsource="text"?
    newsourceid="text"?
  />
Attributes
newsource="text" (optional)

The new source name to be assigned to the content item in the target publication.

newsourceid="text" (optional)

The new source ID to be assigned to the content item in the target publication.