Dynamics AX 2012 R3 have one functionality called 'Marking lines for payment' ; functionality is only available in Accounts Receivable module of Dynamics AX 2012 R3. Functionality allows specific lines of the invoice can be settled and marked for payment.
To enable this functionality navigate to Accounts receivable > Setup > Accounts receivable parameters, select the settlement tab and enable check box for Mark Lines for Payment.
To test the functionality create one Free Text Invoice with two or more lines, and post it. In a settlement process users will be able to an additional options to mark invoice lines. Where users can mark specific lines for payment.
Following screen will allow user to mark lines for payment.
Once payment for the line is posted, next time user will only able to see open lines (unsettled lines). Hope this functionality will help out customers and consultants who have scenarios where they need to settle invoices based on lines
This functionality is only available for invoices processed through Free Text Invoice only.