Interaction Banking Details Required Indicator This indicates if banking details are required. A choice of TRUE/FALSE values. true= Banking details required. false= Banking details not required Interaction Start Record Identifier This is the value that specifies the first element of a list of values. Payment Record Payment Reference Number This is the unique reference number which identifies a payment. This number is generated before the payment is made, and it is used in conjunction with other Payment Mechanism data items to enable a payment via a chosen mechanism type. Party Interaction Interaction Next Record Identifier This is the value that specifies the next element in a list of values. Payment Mechanism Payment Reference Number Identifier A unique reference number made of 18 digits, which identifies payments uniquely. It is referred to in bills, letters, reports to allow the correlation between the relevant report, bill or letter and the payment associated with it. It is generated before the payment is made, and it is used in conjunction with other Payment Mechanism data items to enable a payment via a chosen mechanism type. This element has been retired and should no longer be used. Payment Mechanism Reference Barcode This is the barcode used to generate an image as reference for payments. Payment Record Reference Barcode Barcode data used to generate an image as reference for payments. This element has been retired and should no longer be used.