What field links organization to the constituent record when import an existing organization as the primary business and how to import an existing organization as the primary business
The Relationship Link field links the relationship to the constituent record. The header for this is ORLink. If creating a constituent import file in Admin this field is located under Primary Business, Relationship Link. If manually constructing an import file use the header ORLink. This field should contain the import ID of the Organization's constituent record.
For information on importing organization relationships, refer to: