How can I indicate service status in partial construction invoices?

In the case of partial construction invoices, the service status should be indicated as a percentage for some services that have not yet been fully renderedin order to invoice partially rendered services. A reduced service status is indicated as an imputed value at invoice line level in the “Invoiced quantity” (BT-129) field. This ensures that the actual invoiced amount is always processed as such. Please refrain from indicating the reduced service status as an allowance (in the BG-20 or BG-27 fields) in partial construction invoices. If necessary, further information regarding how the invoiced amount is calculated can be entered at invoice line level in the “Invoice line note” (BT-127) field.