As the stated in IS-IDEC Record Structure, SFI32-element67, ‘If populated with a non-zero value, RM Coupon VAT breakdown record should be provided. Should be equal to the sum of VAT Calculated Amount in the RM Coupon VAT Breakdown record.’, we accordingly have two question about it.
1, Provided that Billing Airline is a Non-migrated Entity, when we raised a RM on VAT, do we have responsibility to add relevant elements in order to generate VAT breakdown, resulting from missing VAT relevant elements in Old-IDEC?
2, As above said, we realised that IS would do validation on element67 of SFI32, however we could not locate other validations on VAT amount in VAT breakdown.
For example: There is no statement in validation space about VAT calculated amount (element20 in SFI34). We accordingly suppose that there is no validation about the balance among the base amount, percentage and VAT caculated amount ( element16,18,20).
So, in my understanding, VAT breakdown Record is for the reason that provide a comprehensive explaination on VAT, which is similar with prorate slip. Therefore, we suggest VAT breakdown Record as a option record in IS-IDEC, although VAT amount is non-zero in coupon breakdown record.