Refer to ISPG V3.0 section 5.6 para 2. There are newly added sentences saying ' Line item detail can not be rejected. Hence...'.
Our problem is our system has the function to rejcet Line Item Details and provide mandatory fields as required by SIS. Can we keep on our current function?
Inward billing is
Invoice Number 123 for charge category A
line item 1# for charge code A1 (under A)
10 line item details for 10 flights (under A1)
we find that 1 of the 10 flights needs to be rejected. Our system generates Rejecetion Invoice as
Invoice Number 456 for charge category A, Invoice type=rejection;
Line item for charge code A1
Line item detail for the fight being rejected.
Is the above process allowed by SIS? Is it feasible?