Passing credentials through SOAP Header in XML to connect to NAV Web Service

Lighthouse

Hello,

Hoping someone has come accross this before, but has anyone connected to a NAV Web Service to create data in a table and passed the credentials through the SOAP Header section of the XML within the envelope?

NAV Version: NAV 2017
NAV Authentication: NAVUserPassword

I am using SOAPUI to Test and I can insert data when filling in the Authorization details for SOAP UI, however for the system that is inserting the data into NAV, they require the credentials in the header of the XML. In the below image, I highlighted a basic concept of what I am trying to insert.