Is this helpful? It mentions selecting ISO11783 as the display type when exporting to Viper4.How To: How to Import ISO XML TASKDATA from SMS into the Viper 4 (salesforce-sites.com)
Thanks for posting this. Your link and the link I posted takes one to the same place. I think I did this all correctly.
Exporting dry fert prescriptions from SMS to Viper 4.
