"Amount (LCY) must have the same sign as Amount in Gen. Journal Line" error message when you post an invoice for a partly shipped sales order or purchase order in which the "Prepayment%" field is set to 100 in Microsoft Dynamics NAV...

Hotfix information

A supported hotfix is now available from Microsoft. However, it is only intended to correct the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft Dynamics NAV 2009 service pack or the next Microsoft Dynamics NAV version that contains this hotfix.

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Technical Support Professional for Microsoft Dynamics and related products determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Code changes

Note Always test code fixes in a controlled environment before you apply the fixes to your production computers.
To resolve this problem, follow these steps:

1. Change the code in the CalcVATAmountLines@35 procedure in the "Sales Line" table (37) as follows:
   Existing code

   ...
   END ELSE BEGIN
   CASE "VAT Calculation Type" OF
   "VAT Calculation Type"::"Normal VAT",
   "VAT Calculation Type"::"Reverse Charge VAT":
   BEGIN
   "VAT Base" := "Line Amount" - "Invoice Discount Amount";
   "VAT Amount" :=
   "VAT Difference" +
   ROUND(
   PrevVatAmountLine."VAT Amount" +
   "VAT Base" * "VAT %" / 100 * (1 - SalesHeader."VAT Base Discount %" / 100),
   Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   "Amount Including VAT" := "Line Amount" - "Invoice Discount Amount" + "VAT Amount";
   IF Positive THEN
   PrevVatAmountLine.INIT
   
   // Delete the following lines.
   ELSE BEGIN
   PrevVatAmountLine := VATAmountLine;
   PrevVatAmountLine."VAT Amount" :=
   ROUND(PrevVatAmountLine."VAT Amount" -
   "VAT Base" * "VAT %" / 100 * (1 - SalesHeader."VAT Base Discount %" / 100),
   Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   END;
   // End of the lines.
   ...

   Replacement code

   ...
   END ELSE BEGIN
   CASE "VAT Calculation Type" OF
   "VAT Calculation Type"::"Normal VAT",
   "VAT Calculation Type"::"Reverse Charge VAT":
   BEGIN
   "VAT Base" := "Line Amount" - "Invoice Discount Amount";
   "VAT Amount" :=
   "VAT Difference" +
   ROUND(
   PrevVatAmountLine."VAT Amount" +
   "VAT Base" * "VAT %" / 100 * (1 - SalesHeader."VAT Base Discount %" / 100),
   Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   "Amount Including VAT" := "Line Amount" - "Invoice Discount Amount" + "VAT Amount";
   IF Positive THEN
   PrevVatAmountLine.INIT
   
   // Add the following lines.
   ELSE
   IF NOT "Includes Prepayment" THEN BEGIN
   PrevVatAmountLine := VATAmountLine;
   PrevVatAmountLine."VAT Amount" :=
   "VAT Base" * "VAT %" / 100 * (1 - SalesHeader."VAT Base Discount %" / 100);
   PrevVatAmountLine."VAT Amount" :=
   PrevVatAmountLine."VAT Amount" -
   ROUND(PrevVatAmountLine."VAT Amount",Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   END;
   // End of the lines.
   ... 

2. Change the code in the CalcVATAmountLines@24 procedure in the "Purchase Line" table (39) as follows:
   Existing code

   ...
   CASE "VAT Calculation Type" OF
   "VAT Calculation Type"::"Normal VAT",
   "VAT Calculation Type"::"Reverse Charge VAT":
   BEGIN
   "VAT Base" := "Line Amount" - "Invoice Discount Amount";
   "VAT Amount" :=
   "VAT Difference" +
   ROUND(
   PrevVatAmountLine."VAT Amount" +
   "VAT Base" * "VAT %" / 100 * (1 - PurchHeader."VAT Base Discount %" / 100),
   Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   "Amount Including VAT" := "Line Amount" - "Invoice Discount Amount" + "VAT Amount";
   IF Positive THEN
   PrevVatAmountLine.INIT
   
   // Delete the following lines.
   ELSE BEGIN
   PrevVatAmountLine := VATAmountLine;
   PrevVatAmountLine."VAT Amount" :=
   "VAT Base" * "VAT %" / 100 * (1 - PurchHeader."VAT Base Discount %" / 100);
   PrevVatAmountLine."VAT Amount" :=
   PrevVatAmountLine."VAT Amount" -
   ROUND(PrevVatAmountLine."VAT Amount",Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   END;
   // End of the lines.
   ...

   Replacement code

   ...
   CASE "VAT Calculation Type" OF
   "VAT Calculation Type"::"Normal VAT",
   "VAT Calculation Type"::"Reverse Charge VAT":
   BEGIN
   "VAT Base" := "Line Amount" - "Invoice Discount Amount";
   "VAT Amount" :=
   "VAT Difference" +
   ROUND(
   PrevVatAmountLine."VAT Amount" +
   "VAT Base" * "VAT %" / 100 * (1 - PurchHeader."VAT Base Discount %" / 100),
   Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   "Amount Including VAT" := "Line Amount" - "Invoice Discount Amount" + "VAT Amount";
   IF Positive THEN
   PrevVatAmountLine.INIT
   
   // Add the following lines.
   ELSE
   IF NOT "Includes Prepayment" THEN BEGIN
   PrevVatAmountLine := VATAmountLine;
   PrevVatAmountLine."VAT Amount" :=
   "VAT Base" * "VAT %" / 100 * (1 - PurchHeader."VAT Base Discount %" / 100);
   PrevVatAmountLine."VAT Amount" :=
   PrevVatAmountLine."VAT Amount" -
   ROUND(PrevVatAmountLine."VAT Amount",Currency."Amount Rounding Precision",Currency.VATRoundingDirection);
   END;
   // End of the lines.
   ...

3. Change the code in the OnRun trigger in the "Sales-Post" codeunit (80) as follows:
   Existing code 1

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   ReturnRcptLine."Quantity Invoiced" :=
   ReturnRcptLine."Quantity Invoiced" + QtyToBeInvoiced;
   ReturnRcptLine."Qty. Invoiced (Base)" :=
   ReturnRcptLine."Qty. Invoiced (Base)" + QtyToBeInvoicedBase;
   ReturnRcptLine."Return Qty. Rcd. Not Invd." :=
   ReturnRcptLine.Quantity - ReturnRcptLine."Quantity Invoiced";
   ReturnRcptLine.MODIFY;
   IF SalesLine.Type = SalesLine.Type::Item THEN
   PostItemJnlLine(
   SalesLine,
   0,0,
   QtyToBeInvoiced,
   QtyToBeInvoicedBase,
   
   // Delete the following line.
   {ReturnRcptLine."Item Rcpt. Entry No."}
   
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   EndLoop := (TempInvoicingSpecification.NEXT = 0)
   ELSE
   EndLoop :=
   (ReturnRcptLine.NEXT = 0) OR (ABS(RemQtyToBeInvoiced) <= ABS(SalesLine."Return Qty. to Receive"));
   UNTIL EndLoop;
   END ELSE
   ERROR(
   Text025,
   SalesLine."Return Receipt Line No.",SalesLine."Return Receipt No.");
   END;
   ...

   Replacement code 1

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   ReturnRcptLine."Quantity Invoiced" :=
   ReturnRcptLine."Quantity Invoiced" + QtyToBeInvoiced;
   ReturnRcptLine."Qty. Invoiced (Base)" :=
   ReturnRcptLine."Qty. Invoiced (Base)" + QtyToBeInvoicedBase;
   ReturnRcptLine."Return Qty. Rcd. Not Invd." :=
   ReturnRcptLine.Quantity - ReturnRcptLine."Quantity Invoiced";
   ReturnRcptLine.MODIFY;
   IF SalesLine.Type = SalesLine.Type::Item THEN
   PostItemJnlLine(
   SalesLine,
   0,0,
   QtyToBeInvoiced,
   QtyToBeInvoicedBase,
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   EndLoop := (TempInvoicingSpecification.NEXT = 0)
   ELSE
   EndLoop :=
   (ReturnRcptLine.NEXT = 0) OR (ABS(RemQtyToBeInvoiced) <= ABS(SalesLine."Return Qty. to Receive"));
   UNTIL EndLoop;
   END ELSE
   ERROR(
   Text025,
   SalesLine."Return Receipt Line No.",SalesLine."Return Receipt No.");
   END;
   ...

   Existing code 2

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   SalesShptLine."Quantity Invoiced" :=
   SalesShptLine."Quantity Invoiced" - QtyToBeInvoiced;
   SalesShptLine."Qty. Invoiced (Base)" :=
   SalesShptLine."Qty. Invoiced (Base)" - QtyToBeInvoicedBase;
   SalesShptLine."Qty. Shipped Not Invoiced" :=
   SalesShptLine.Quantity - SalesShptLine."Quantity Invoiced";
   SalesShptLine.MODIFY;
   IF SalesLine.Type = SalesLine.Type::Item THEN
   PostItemJnlLine(
   SalesLine,
   0,0,
   QtyToBeInvoiced,
   QtyToBeInvoicedBase,
   
   // Delete the following line.
   {SalesShptLine."Item Shpt. Entry No."}
   
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   EndLoop := (TempInvoicingSpecification.NEXT = 0)
   ELSE
   EndLoop :=
   (SalesShptLine.NEXT = 0) OR (ABS(RemQtyToBeInvoiced) <= ABS(SalesLine."Qty. to Ship"))
   UNTIL EndLoop;
   END ELSE
   ERROR(
   Text026,
   SalesLine."Shipment Line No.",SalesLine."Shipment No.");
   END;

   Replacement code 2

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   SalesShptLine."Quantity Invoiced" :=
   SalesShptLine."Quantity Invoiced" - QtyToBeInvoiced;
   SalesShptLine."Qty. Invoiced (Base)" :=
   SalesShptLine."Qty. Invoiced (Base)" - QtyToBeInvoicedBase;
   SalesShptLine."Qty. Shipped Not Invoiced" :=
   SalesShptLine.Quantity - SalesShptLine."Quantity Invoiced";
   SalesShptLine.MODIFY;
   IF SalesLine.Type = SalesLine.Type::Item THEN
   PostItemJnlLine(
   SalesLine,
   0,0,
   QtyToBeInvoiced,
   QtyToBeInvoicedBase,
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   EndLoop := (TempInvoicingSpecification.NEXT = 0)
   ELSE
   EndLoop :=
   (SalesShptLine.NEXT = 0) OR (ABS(RemQtyToBeInvoiced) <= ABS(SalesLine."Qty. to Ship"))
   UNTIL EndLoop;
   END ELSE
   ERROR(
   Text026,
   SalesLine."Shipment Line No.",SalesLine."Shipment No.");
   END;
   ...

4. Change the code in the AdjustPrepmtAmountLCY@84 local procedure in the "Sales-Post" codeunit (80) as follows:
   Existing code 1

   ...
   TempPrepmtDeductLCYSalesLine.SETRANGE("Attached to Line No.",PrepmtSalesLine."Line No.");
   IF TempPrepmtDeductLCYSalesLine.FINDSET(TRUE) THEN
   REPEAT
   SalesLine := TempPrepmtDeductLCYSalesLine;
   SalesLine.FIND;
   IF SalesLine."Document Type" = SalesLine."Document Type"::Invoice THEN
   GetSalesOrderLine(SalesLine,SalesLine);
   DeductionFactor :=
   SalesLine."Prepmt Amt to Deduct" /
   (SalesLine."Prepmt. Amt. Inv." - SalesLine."Prepmt Amt Deducted");
   ...

   Replacement code 1

   ...
   TempPrepmtDeductLCYSalesLine.SETRANGE("Attached to Line No.",PrepmtSalesLine."Line No.");
   IF TempPrepmtDeductLCYSalesLine.FINDSET(TRUE) THEN
   REPEAT
   SalesLine := TempPrepmtDeductLCYSalesLine;
   SalesLine.FIND;
   IF SalesLine."Document Type" = SalesLine."Document Type"::Invoice THEN
   GetSalesOrderLine(SalesLine,SalesLine);
   
   // Add the following line.
   SalesLine."Prepmt Amt to Deduct" := CalcPrepmtAmtToDeduct(SalesLine);
   
   DeductionFactor :=
   SalesLine."Prepmt Amt to Deduct" /
   (SalesLine."Prepmt. Amt. Inv." - SalesLine."Prepmt Amt Deducted");
   ...

   Existing code 2

   ...
   IF ABS(TotalPrepmtVATAmtLCYDifference) <= GLSetup."Amount Rounding Precision" THEN
   TotalPrepmtVATAmtLCYDifference := 0;
   PrepmtSalesLine."Prepmt. VAT Amount Inv. (LCY)" := TotalPrepmtVATAmtLCYDifference;
   NewAmountIncludingVAT := PrepmtSalesLine.Amount + TotalPrepmtVATAmtLCY + TotalPrepmtVATAmtLCYDifference;
   Increment(TotalSalesLineLCY."Amount Including VAT",PrepmtSalesLine."Amount Including VAT" - NewAmountIncludingVAT);
   PrepmtSalesLine."Amount Including VAT" := NewAmountIncludingVAT;
   END;
   END;
   LOCAL PROCEDURE GetSalesOrderLine@85(VAR SalesOrderLine@1000 : Record 37;SalesLine@1001 : Record 37);
   ...

   Replacement code 2

   ...
   IF ABS(TotalPrepmtVATAmtLCYDifference) <= GLSetup."Amount Rounding Precision" THEN
   TotalPrepmtVATAmtLCYDifference := 0;
   PrepmtSalesLine."Prepmt. VAT Amount Inv. (LCY)" := TotalPrepmtVATAmtLCYDifference;
   NewAmountIncludingVAT := PrepmtSalesLine.Amount + TotalPrepmtVATAmtLCY + TotalPrepmtVATAmtLCYDifference;
   Increment(TotalSalesLineLCY."Amount Including VAT",PrepmtSalesLine."Amount Including VAT" - NewAmountIncludingVAT);
   
   // Add the following lines.
   IF SalesLine."Currency Code" = '' THEN
   TotalSalesLine."Amount Including VAT" := TotalSalesLineLCY."Amount Including VAT";
   // End of the lines.
   
   PrepmtSalesLine."Amount Including VAT" := NewAmountIncludingVAT;
   END;
   END;
   
   // Add the following lines.
   PROCEDURE CalcPrepmtAmtToDeduct@71(SalesLine@1000 : Record 37) : Decimal;
   VAR
   AllowedQtyToInvoice@1001 : Decimal;
   BEGIN
   WITH SalesLine DO BEGIN
   AllowedQtyToInvoice := "Qty. Shipped Not Invoiced";
   IF SalesHeader.Ship THEN
   AllowedQtyToInvoice := AllowedQtyToInvoice + "Qty. to Ship";
   IF "Qty. to Invoice" > AllowedQtyToInvoice THEN BEGIN
   "Qty. to Invoice" := AllowedQtyToInvoice;
   CalcPrepaymentToDeduct;
   END;
   EXIT("Prepmt Amt to Deduct");
   END;
   END;
   // End of the lines.
   
   LOCAL PROCEDURE GetSalesOrderLine@85(VAR SalesOrderLine@1000 : Record 37;SalesLine@1001 : Record 37);
   ...

5. Change the code in the OnRun trigger in the "Purch.-Post" codeunit (90) as follows:
   Existing code 1

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   ReturnShptLine."Quantity Invoiced" :=
   ReturnShptLine."Quantity Invoiced" - QtyToBeInvoiced;
   ReturnShptLine."Qty. Invoiced (Base)" :=
   ReturnShptLine."Qty. Invoiced (Base)" - QtyToBeInvoicedBase;
   ReturnShptLine."Return Qty. Shipped Not Invd." :=
   ReturnShptLine.Quantity - ReturnShptLine."Quantity Invoiced";
   ReturnShptLine.MODIFY;
   IF PurchLine.Type = PurchLine.Type::Item THEN
   PostItemJnlLine(
   PurchLine,
   0,0,
   QtyToBeInvoiced,QtyToBeInvoicedBase,
   
   // Delete the following line.
   {ReturnShptLine."Item Shpt. Entry No."}
   
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   ...

   Replacement code 1

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   ReturnShptLine."Quantity Invoiced" :=
   ReturnShptLine."Quantity Invoiced" - QtyToBeInvoiced;
   ReturnShptLine."Qty. Invoiced (Base)" :=
   ReturnShptLine."Qty. Invoiced (Base)" - QtyToBeInvoicedBase;
   ReturnShptLine."Return Qty. Shipped Not Invd." :=
   ReturnShptLine.Quantity - ReturnShptLine."Quantity Invoiced";
   ReturnShptLine.MODIFY;
   IF PurchLine.Type = PurchLine.Type::Item THEN
   PostItemJnlLine(
   PurchLine,
   0,0,
   QtyToBeInvoiced,QtyToBeInvoicedBase,
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   ...

   Existing code 2

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   PurchRcptLine."Quantity Invoiced" := PurchRcptLine."Quantity Invoiced" + QtyToBeInvoiced;
   PurchRcptLine."Qty. Invoiced (Base)" := PurchRcptLine."Qty. Invoiced (Base)" + QtyToBeInvoicedBase;
   PurchRcptLine."Qty. Rcd. Not Invoiced" :=
   PurchRcptLine.Quantity - PurchRcptLine."Quantity Invoiced";
   PurchRcptLine.MODIFY;
   IF PurchLine.Type = PurchLine.Type::Item THEN
   PostItemJnlLine(
   PurchLine,
   0,0,
   QtyToBeInvoiced,QtyToBeInvoicedBase,
   
   // Delete the following line.
   {PurchRcptLine."Item Rcpt. Entry No."}
   
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   ...

   Replacement code 2

   ...
   RemQtyToBeInvoiced := RemQtyToBeInvoiced - QtyToBeInvoiced;
   RemQtyToBeInvoicedBase := RemQtyToBeInvoicedBase - QtyToBeInvoicedBase;
   PurchRcptLine."Quantity Invoiced" := PurchRcptLine."Quantity Invoiced" + QtyToBeInvoiced;
   PurchRcptLine."Qty. Invoiced (Base)" := PurchRcptLine."Qty. Invoiced (Base)" + QtyToBeInvoicedBase;
   PurchRcptLine."Qty. Rcd. Not Invoiced" :=
   PurchRcptLine.Quantity - PurchRcptLine."Quantity Invoiced";
   PurchRcptLine.MODIFY;
   IF PurchLine.Type = PurchLine.Type::Item THEN
   PostItemJnlLine(
   PurchLine,
   0,0,
   QtyToBeInvoiced,QtyToBeInvoicedBase,
   ItemEntryRelation."Item Entry No.",'',TempInvoicingSpecification);
   IF TrackingSpecificationExists THEN
   ...

6. Change the code in the AdjustPrepmtAmountLCY@84 local procedure in the "Purch.-Post" codeunit (90) as follows:
   Existing code 1

   ...
   TempPrepmtDeductLCYPurchLine.SETRANGE("Attached to Line No.",PrepmtPurchLine."Line No.");
   IF TempPrepmtDeductLCYPurchLine.FINDSET(TRUE) THEN
   REPEAT
   PurchLine := TempPrepmtDeductLCYPurchLine;
   PurchLine.FIND;
   IF PurchLine."Document Type" = PurchLine."Document Type"::Invoice THEN
   GetPurchOrderLine(PurchLine,PurchLine);
   DeductionFactor :=
   PurchLine."Prepmt Amt to Deduct" /
   (PurchLine."Prepmt. Amt. Inv." - PurchLine."Prepmt Amt Deducted");
   PrepmtAmtLCYDifference :=
   ...

   Replacement code 1

   ...
   TempPrepmtDeductLCYPurchLine.SETRANGE("Attached to Line No.",PrepmtPurchLine."Line No.");
   IF TempPrepmtDeductLCYPurchLine.FINDSET(TRUE) THEN
   REPEAT
   PurchLine := TempPrepmtDeductLCYPurchLine;
   PurchLine.FIND;
   IF PurchLine."Document Type" = PurchLine."Document Type"::Invoice THEN
   GetPurchOrderLine(PurchLine,PurchLine);
   
   // Add the following line.
   PurchLine."Prepmt Amt to Deduct" := CalcPrepmtAmtToDeduct(PurchLine);
   
   DeductionFactor :=
   PurchLine."Prepmt Amt to Deduct" /
   (PurchLine."Prepmt. Amt. Inv." - PurchLine."Prepmt Amt Deducted");
   PrepmtAmtLCYDifference :=
   ...

   Existing code 2

   ...
   IF ABS(TotalPrepmtVATAmtLCYDifference) <= GLSetup."Amount Rounding Precision" THEN
   TotalPrepmtVATAmtLCYDifference := 0;
   PrepmtPurchLine."Prepmt. VAT Amount Inv. (LCY)" := -TotalPrepmtVATAmtLCYDifference;
   NewAmountIncludingVAT := PrepmtPurchLine.Amount - (TotalPrepmtVATAmtLCY + TotalPrepmtVATAmtLCYDifference);
   Increment(TotalPurchLineLCY."Amount Including VAT",-(PrepmtPurchLine."Amount Including VAT" - NewAmountIncludingVAT));
   PrepmtPurchLine."Amount Including VAT" := NewAmountIncludingVAT;
   END;
   END;
   LOCAL PROCEDURE GetPurchOrderLine@85(VAR PurchOrderLine@1000 : Record 39;PurchLine@1001 : Record 39);
   ...

   Replacement code 2

   ...
   IF ABS(TotalPrepmtVATAmtLCYDifference) <= GLSetup."Amount Rounding Precision" THEN
   TotalPrepmtVATAmtLCYDifference := 0;
   PrepmtPurchLine."Prepmt. VAT Amount Inv. (LCY)" := -TotalPrepmtVATAmtLCYDifference;
   NewAmountIncludingVAT := PrepmtPurchLine.Amount - (TotalPrepmtVATAmtLCY + TotalPrepmtVATAmtLCYDifference);
   Increment(TotalPurchLineLCY."Amount Including VAT",-(PrepmtPurchLine."Amount Including VAT" - NewAmountIncludingVAT));
   
   // Add the following lines.
   IF PurchLine."Currency Code" = '' THEN
   TotalPurchLine."Amount Including VAT" := TotalPurchLineLCY."Amount Including VAT";
   // End of the lines.
   
   PrepmtPurchLine."Amount Including VAT" := NewAmountIncludingVAT;
   END;
   END;
   
   // Add the following lines.
   LOCAL PROCEDURE CalcPrepmtAmtToDeduct@71(PurchLine@1000 : Record 39) : Decimal;
   VAR
   AllowedQtyToInvoice@1001 : Decimal;
   BEGIN
   WITH PurchLine DO BEGIN
   AllowedQtyToInvoice := "Qty. Rcd. Not Invoiced";
   IF PurchHeader.Receive THEN
   AllowedQtyToInvoice := AllowedQtyToInvoice + "Qty. to Receive";
   IF "Qty. to Invoice" > AllowedQtyToInvoice THEN BEGIN
   "Qty. to Invoice" := AllowedQtyToInvoice;
   CalcPrepaymentToDeduct;
   END;
   EXIT("Prepmt Amt to Deduct");
   END;
   END;
   // End of the lines.
   
   LOCAL PROCEDURE GetPurchOrderLine@85(VAR PurchOrderLine@1000 : Record 39;PurchLine@1001 : Record 39);
   ...