Amending the Basic Data Import template to include contact preference flags and contact source.

https://admin.prospect365.com/DataManagement/DataImport/Import.aspx 

We need to update the instructions for the columns on this page.

We also need to update the template to include the new columns.

The importer also needs to import these new columns and if the source field is blank, it needs to use current import date and needs to import all three levels of the hierarchies source field, company, division, contact.