Hello,

I am a ASP.Net Programmer , working with DNN 3.2.

I am trying to integrate the paypal  in my module for purchasing item
I want to notify user with mail about the money transaction whether it is verified or not..
And have to do some changes in database if only the money transaction is verified.

I have written the paypalstring statement as

Dim sBaseURL As String = sDomain & IIf(Request.ApplicationPath = "/", "", Request.ApplicationPath).ToString & "/DesktopModules/PayPalIPN"
                    Dim strPayPalURL As String = ""
                    strPayPalURL = "https://www.paypal.com/xclick/business=" & HTTPPOSTEncode(strProcessorUserId)
                    strPayPalURL += "&item_name=" & HTTPPOSTEncode(strProductName)
                    strPayPalURL += "&item_number=" & ModuleId
                    strPayPalURL += "&quantity=" & HTTPPOSTEncode(txtQty.Text)
                    strPayPalURL += "&custom=" & HTTPPOSTEncode(Context.User.Identity.Name)
                    strPayPalURL += "&amount=" & HTTPPOSTEncode(lblProductCost.Text)
                    strPayPalURL += "&currency_code=" & HTTPPOSTEncode(lblTotalCurrency.Text)
                    strPayPalURL += "&return=" & HTTPPOSTEncode(Settings("SuccessURL").ToString)
                    strPayPalURL += "&cancel_return=" & HTTPPOSTEncode(Settings("FailedURL").ToString)
                    strPayPalURL += "&notify_url=" & HTTPPOSTEncode(sBaseURL & "/PaymentNotify.aspx")
                    strPayPalURL += "&undefined_quantity=0&no_note=1&no_shipping="
                    If Settings("Shipping").ToString <> "" Then
                        strPayPalURL = strPayPalURL & "0&shipping=" & lblShippingTotalCost.Text
                    Else
                        strPayPalURL += "1"
                    End If
                    ' redirect to PayPal
                    Response.Redirect(strPayPalURL)

And in notify_url=PaymentNotify.aspx I am verifying the valid transaction and doing db changes..

But somehow it is not going through PaymentNotify.aspx or you can say the values in db are not changing

Can anybody tell me where I am getting wrong?

Please help me

Thanks in advance,
Alka