Tracking-link tags and VMS solicitor credit

For GiveCampus reporting.

The Unique Tracking Link summary CSV names its tag column tag. In the gift-level custom report, use advocate_user with advocate_link_title/advocate_link_desc; the standard view does not expose the link tag as a separate gift column. Join the gift advocate_user to the link summary unique_tracking_link_id to bring its tag into a combined export; the Gifts API also exposes advocate.tag. VMS solicitor names are not the same as gift advocate attribution and are not a standard independent solicitor-name column in that gift view. If using VMS assignments for CRM credit, join an authorized assignment/constituent export under an explicit institutional credit rule; a current assignment alone does not prove who solicited a historical gift.