In the invoice agenda, you need to filter records by document type (typically ADVANCE and TAX DOCUMENT FOR ADVANCE) and by the "Advance deduction" column (filter not equal to "Deducted").
Report for advances and tax documents for advances that were not deducted
Which report to use for displaying advance invoices and tax documents for received payments (ZDD) for which a final invoice has not been issued?
Written by Lenka Haringerová