ReversalRequest

Component					Type	Required	Description
SaleToPOIRequest					Defined datastructure
	MessageHeader				Defined datastructure
		MessageClass			Enumeration	Required	Value: `Service`
		SaleID			String	Required	Value: `John`
		MessageType			Enumeration	Required	Value: `Request`
		ProtocolVersion			String	Conditional	Value: `3.0`
		MessageCategory			Enumeration	Required	Value: `Reversal`
		ServiceID			String	Conditional	Value: `1110151215`
		POIID			String	Required	Value: `MX925-260193322`
	ReversalRequest				Defined datastructure
		OriginalPOITransaction			Defined datastructure	Required
			POITransactionID		Defined datastructure	Conditional
				TimeStamp	ISODateTime	Required	Value: `2017-07-03T07:45:44.000Z`
				TransactionID	String	Required	Value: `oLkO001503399575001.9815033996072250`
		ReversalReason			Enumeration	Required	Value: `MerchantCancel`