Advance invoice in PartlyPaidPrelPosted, PartlyPaidPosted, PaidPrelPosted or PaidPosted status could be connected to the final invoice with the same currency. When connected to the final invoice the amortize amount of the advance invoice will be deducted from the final invoice open amount.
Advance invoice with PartlyPaidPrelPosted, PartlyPaidPosted, PaidPrelPosted or PaidPosted status should exist.
The advance invoice will be connected to the final invoice and the final invoice information will be adjusted accordingly. (Postings, Open amount etc.,)