Before you can start creating shipments with Omniva, nShift Delivery needs to obtain representing rights from Omniva for your Omniva customer number. Please contact xmlws@omniva.ee and state your Omniva customer number, and that you will use nShift Delivery to create shipments and ask for representing rights. When you've received confirmation from Omniva, log into Delivery and save your Omniva customer number on your sender (Maintenance > Senders). And you can start creating shipments.