B2B Invoice Master - Customer Model

This is the master Invoice payload layout for a customer order2Cash flow where the partner hosts the API and data is posted to. It should be used as design template/suggestion for a customer hosted API only. There's no equivalent system API at Flex, because it's just a template to be shared with a customer, to understand our dataset and suggest an API design, for those which do not have their own API spec yet. All these B2B master signals share a common library.