Indicates if the transaction was a 'S' (sale) or 'R' (return)
Source
<xs:elementname="SaleReturnInd"type="xs:string"xmlns:xs="http://www.w3.org/2001/XMLSchema"><xs:annotation><xs:documentation><pxmlns="http://Hps.Exchange.PosGateway">Indicates if the transaction was a 'S' (sale) or 'R' (return)</p></xs:documentation></xs:annotation></xs:element>