How to insert Data into SQL Server

The code below works very well against Ms Access VBA but the same code does not insert anything against Ms SQL Server, any assistance will be highly appreciated. It seams like SQL does not like the command UPDATE I still think it wants a reference or Primary ID number while access accept without problems. The primary ID number cannot be there until the record is created, so in place of UPDATE  is there something that need to be done to insert the processed data into the SQL table????

Dim JSONS As Object

    lngStatus = CommRead(intPortID, strData, 14400)

Set rs = db.OpenRecordset("tblEfdReceipts")
    If lngStatus > 0 Then
    Set JSONS = JsonConverter.ParseJson(strData)
    Z = 2
    ElseIf lngStatus < 0 Then
    Beep
    MsgBox "Please note that there is no data to read", vbOKOnly, "The Comm Port has no data"
        ' Handle error.
        On Error Resume Next
    End If
        ' Process data.
  
  For Each Item In JSONS
           With rs
         
            .AddNew
            rs![TPIN] = Item("TPIN")
            rs![TaxpayerName] = Item("TaxpayerName")
            rs![Address] = Item("Address")
            rs![ESDTime] = Item("ESDTime")
            rs![TerminalID] = Item("TerminalID")
            rs![InvoiceCode] = Item("InvoiceCode")
            rs![InvoiceNumber] = Item("InvoiceNumber")
            rs![FiscalCode] = Item("FiscalCode")
            rs![TalkTime] = Item("TalkTime")
            rs![Operator] = Item("Operator")
            rs![Taxlabel] = Item("TaxItems")("TaxLabel")
            rs![CategoryName] = Item("TaxItems")("CategoryName")
            rs![Rate] = Item("TaxItems")("Rate")
            rs![TaxAmount] = Item("TaxItems")("TaxAmount")
            rs![TotalAmount] = Item("TaxItems")("TotalAmount")
            rs![VerificationUrl] = Item("TaxItems")("VerificationUrl")
            rs![INVID] = Me.InvoiceID
            rs.Update
        End With
        Z = Z + 1
    Next
      
      rs.Close
      Set rs = Nothing
      Set db = Nothing
      Set JSONS = Nothing

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Regards

Chris