Incorrect VAT amount is posted on service invoice when you partly invoice a service order in Microsoft Dynamics NAV

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This article applies to Microsoft Dynamics NAV for all language locales.

Symptoms

In Microsoft Dynamics NAV, when you partly invoice a service order in the Service module, you notice that the VAT amount is calculated incorrectly. This problem occurs when the invoice rounding is selected and more than one service line is shipped.
This problem occurs in the following products:

Microsoft Dynamics NAV 2009 Service Pack 1 (SP1)
Microsoft Dynamics NAV 2009 R2

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Resolution

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.

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Installation information

Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.

Note Before you install this hotfix, verify that all Microsoft Navision client users are logged off the system. This includes Microsoft Navision Application Services (NAS) client users. You should be the only client user who is logged on when you implement this hotfix.

To implement this hotfix, you must have a developer license.

We recommend that the user account in the Windows Logins window or in the Database Logins window be assigned the "SUPER" role ID. If the user account cannot be assigned the "SUPER" role ID, you must verify that the user account has the following permissions:

The Modify permission for the object that you will be changing.
The Execute permission for the System Object ID 5210 object and for the System Object ID 9015 object.

Note You do not have to have rights to the data stores unless you have to perform data repair.

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:

Change the code in the CalcVATAmountLines function in the Service Line table (5902) as follows:
Add the following C/Al Local variables:

Name: Cust; DataType: Record (18)
Name: CustPostingGroup; DataType: Record (92)

Existing code

...
  SalesSetup.GET;

IF SalesSetup."Invoice Rounding" THEN BEGIN

// Delete the following lines.
ServLine2.COPYFILTERS(ServiceLine);

RoundingLineInserted := ServiceLine.COUNT <> ServLine2.COUNT;
// End of the deleted lines.

END;

IF FINDSET THEN

REPEAT

IF "VAT Calculation Type" IN

["VAT Calculation Type"::"Reverse Charge VAT","VAT Calculation Type"::"Sales Tax"]

THEN
...

Replacement code

...
 SalesSetup.GET;

IF SalesSetup."Invoice Rounding" THEN BEGIN

// Add the following lines.
Cust.GET(ServHeader."Bill-to Customer No.");

CustPostingGroup.GET(Cust."Customer Posting Group");
// End of the added lines.

END;

IF FINDSET THEN

REPEAT

// Add the following lines.
IF Type = Type::"G/L Account" THEN

RoundingLineInserted := ("No." = CustPostingGroup."Invoice Rounding Account") OR RoundingLineInserted;
// End of the added lines.

IF "VAT Calculation Type" IN

["VAT Calculation Type"::"Reverse Charge VAT","VAT Calculation Type"::"Sales Tax"]

THEN
...

Add the GetLastLineNo local function in the Serv-Amounts Mgt. codeunit (5986) as follows:
GetLastLineNo( ServLine: Record 5902) : Integer

...
  WITH ServLine DO BEGIN

SETRANGE("Document Type", "Document Type");

SETRANGE("Document No.", "Document No.");

IF FINDLAST THEN

EXIT("Line No.");

END;
...

Change the code in the InvoiceRounding function in the Serv-Amounts Mgt. table (5986) as follows:
Existing code

...
  IF InvoiceRoundingAmount <>0 THEN BEGIN

CustPostingGr.GET(ServiceHeader."Customer Posting Group");

CustPostingGr.TESTFIELD("Invoice Rounding Account");

WITH ServiceLine DO BEGIN

INIT;

// Delete the following line.
NextLineNo := "Line No." + 10000;
// End of the deleted line.

"System-Created Entry" := TRUE;
...

Replacement code

...
 IF InvoiceRoundingAmount <> 0 THEN BEGIN

CustPostingGr.GET(ServiceHeader."Customer Posting Group");

CustPostingGr.TESTFIELD("Invoice Rounding Account");

WITH ServiceLine DO BEGIN

INIT;

// Add the following lines.
NextLineNo := GetLastLineNo(ServiceLine) + 10000;
// End of the added lines.

"System-Created Entry" := TRUE;
...

Prerequisites

You must have one of the following products installed to apply this hotfix:

Microsoft Dynamics NAV 2009 Service Pack 1 (SP1)
Microsoft Dynamics NAV 2009 R2

Removal information

You cannot remove this hotfix.

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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References

VSTF DynamicsNAV SE: 276601

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Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

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