DiagnosisRequest

Component			Type	Required	Description
SaleToPOIRequest			Defined datastructure
	MessageHeader		Defined datastructure
		ProtocolVersion	String	Conditional	Value: `3.0`
		MessageClass	Enumeration	Required	Value: `Service`
		MessageCategory	Enumeration	Required	Value: `Diagnosis`
		MessageType	Enumeration	Required	Value: `Request`
		ServiceID	String	Conditional	Identification of a message pair, which processes a transaction. Rule: Required if 'Service' or 'Event' MessageClass message or if 'Device' MessageClass and request from terminal or response from cash register.
		SaleID	String	Required	Identification of a cash register for the NEXO Sale to POI protocol.
		POIID	String	Required	Identification of a payment terminal for the NEXO Sale to POI protocol.
	DiagnosisRequest		Defined datastructure
		HostDiagnosisFlag	Boolean	Conditional	Set to true to include Adyen backend availability test result in response