CUSTNBR        Customer number               0000600005CHYN    NNNNYNNN00YMD     NN   Customer number               Cust#                                                                                                                                                                                                                           
DATE           Invoice date                  0001100006CHNY    NNNNNNNN00YMD     NN   Invoice date                  Invoice,Date                                                                                                                                                                                                                    
INVAMT         Invoice amount                0002000008CHYN    NNNNYNNN02YMD     NN   Invoice amount                Invoice,Amount                ###,###.##                                                                                                                                                                                        
INVNBR         Invoice number                0000100005CHNN    NNNNNNNN00YMD     NN   Invoice number                Inv,Nbr                                                                                                                                                                                                                         
ITEMS          Number of line items          0001700003CHYN    NNNNYYNN00YMD     NN   Number of line items          Line,Items