DisplayRequest

Component			Type	Required	Description
SaleToPOIRequest			Defined datastructure
	MessageHeader		Defined datastructure
		ProtocolVersion	String	Conditional	Rule: Required if MessageCategory is Login or Diagnosis. Also required for any other MessageCategory if not using Login first.
		MessageClass	Enumeration	Required	Class of the message.
		MessageCategory	Enumeration	Required	Category of message.
		MessageType	Enumeration	Required	Type of message of the NEXO Sale to POI protocol.
		ServiceID	String	Conditional	Identification of a message pair, which processes a transaction. Rule: Required if MessageClass is Service or Event, or if MessageClass is Device and it is a request from the terminal or a response from the Sale System.
		SaleID	String	Required	Identification of a Sale System for the NEXO Sale to POI protocol.
		POIID	String	Required	Identification of a payment terminal for the NEXO Sale to POI protocol.
	DisplayRequest		Defined datastructure
		DisplayOutput	Defined datastructure	Required Array	Information to display and the way to process the display. Rule: Complete display content for output devices. At most one DisplayOutput per Device/ InfoQualify pair.