DI cannot add Previous Period Sales Order

Question

Hi all,
Currently, I had a big problem. My client is running SAP B1 2004.2B PL 50 with DI API installed. They are running a very simple customize program to add Sales Order into SAP B1. The customize program simply read a text file (Tab delimiter) and in turn create a Sales Order. It was working fine when their SAP B1 2004.2B is in Patch Level 15. However, after the upgrade to Patch Level 50, the customize program prompt error while adding Sales Order. Error Message: "Date deviates from permissible range [ORDR.DocDate]"
Anyone have any idea why this occurs? My client cannot downgrade back to lower patch as PL 50 solve the bug on Closing Production Order. Furthermore, it is a very simple coding, just that this PL 50 do not allow posting of eariler documents.
Anyone can help?
Below is the coding:
Private Sub TESTING()
    Dim vcmp As SAPbobsCOM.Company
    Set vcmp = New SAPbobsCOM.Company
    Dim err As Long
    Dim errmsg As String
    With vcmp
        .CompanyDB = "TestingDB"
        .Server = "Server"
        .DbUserName = "sa"
        .DbPassword = "sa"
        .UserName = "manager"
        .Password = "manager"
        .LicenseServer = "Server"
        err = .Connect
        If err <> 0 Then
            Call .GetLastError(err, errmsg)
            MsgBox (errmsg)
        Else
            Dim oSO As SAPbobsCOM.Documents
            Set oSO = .GetBusinessObject(oOrders)
            oSO.CardCode = "CH0002"
            oSO.DocDate = "17/10/2006"
            oSO.DocDueDate = "17/10/2006"
            oSO.DocType = dDocument_Service
            oSO.Lines.AccountCode = "_SYS00000000377"
            oSO.Lines.Price = 100
            err = oSO.Add
            If err <> 0 Then
                Call vcmp.GetLastError(err, errmsg)
                MsgBox (errmsg)
            Else
                MsgBox "Successful"
                vcmp.Disconnect
            End If
        End If
    End With
End Sub

Answer 1

Hi there,
Answer to your questions:
1) The period I wanted to post to is set to current/default period.
2) All the period is active and not locked.
3) The document date entered is within the period I set to current/default period. (Meaning I want to post a Sales Order in period 2006/08 and the current period had set default to 2006/08, and the document date is in 01/08/2006 (dd/mm/yyyy), but the system date now is 06/11/2006.)
Now my question is even though I did not set my posting period to the period that I want to post the Sales Order. As long as the period is active and is not locked, I should be able to use DI to post the Sales Order right? When my SAP B1 2004.2B is in PL 25, I can do it without any problem. After I upgraded to PL50 and even PL55, I cannot even post it.
Lastly, when using DI I shouldn't be bothered about setting the posting period to the correct posting period as DI do not have this function and the customize program is not run within SAP B1.
Anyone can help?