AAB = Proforma invoice number
AAJ = Delivery order number
AAK = Despatch advice number
CD = Credit note number
CR = Customer reference number
CT = Contract number
DL = Debit note number
DQ = Delivery note number
IV = Invoice number
ON = Order number (buyer)
PL = Price list number
POR = Purchase order response number
PP = Purchase order change number
VN = Order number (supplier)

Reference number

an..35

Line number

an..6

Reference version number

an..35

Segment Notes:

This segment is used to provide any additional references relevant to the currently identified DOC segment.

Example :

RFF+ON:A-7664'