Line item x is invalid. (270) where amount is a negative value

[gchq]

We are hitting the buffers on invalid line item when one line item is a negative number

If result = True Then
                        Dim vDebit As Double = Row.Cells(1).Text
                        Dim vCredit As Double = Row.Cells(2).Text
                        Dim vInvNo As Integer = Row.Cells(8).Text
                        Dim vInvoiceDescription As String = Row.Cells(6).ToolTip
                        Dim LineAmount As Double = 0
                        If vCredit > 0 Then
                            Dim CreditString As String = "-" & CType(vCredit, Double)
                            LineAmount = CType(CreditString, String)
                        Else
                            LineAmount = vDebit
                        End If
                        vTotal += LineAmount
                        objInf.Add("x_line_item=item" & vItemNo, "<|>Invoice " & vInvNo & "<|>" & vInvoiceDescription & "<|>1<|>" & LineAmount & "<|>N")
                        vItemNo += 1
                    End If

so the line amount will be processed as -10.00 where the customer selects

One invoice $100.00

One Credit $10.00

One Invoice $100.00

Total $190.00

How should this be configured?

Thanks

[gchq · Accepted solution]

Seems the answer is not to have a negative amount in the values - it will still process as $190.00 if the amounts are

$100.00

  $10.00

$100.00

Looks like the gateway actually ignores the amounts  provided the correct total is given, so by changing the code to

If result = True Then
                        Dim vDebit As Double = Row.Cells(1).Text
                        Dim vCredit As Double = Row.Cells(2).Text
                        Dim vInvNo As Integer = Row.Cells(8).Text
                        Dim vInvoiceDescription As String = Row.Cells(6).ToolTip
                        Dim LineAmount As Double = 0
                        Dim LineBalance As Decimal = 0
                        If vCredit > 0 Then
                            Dim CreditString As String = "-" & CType(vCredit, Double)
                            LineAmount = CType(CreditString, String)
                            LineBalance = vCredit
                        Else
                            LineAmount = vDebit
                            LineBalance = vDebit
                        End If
                        vTotal += LineAmount
                        objInf.Add("x_line_item=item" & vItemNo, "<|>Invoice " & vInvNo & "<|>" & vInvoiceDescription & "<|>1<|>" & LineBalance & "<|>N")
                        vItemNo += 1
                    End If

It will process the line item as a positive number but the total will be correct

[Joy]

Hi gchq,

Whatever data you pass for the line item fields are not validated. Authorize.Net will only validate the total amount and process what is submitted as the total amount.

Thanks,

Joy

[mahesh_teck]

AuthorizeInvalidError: {'line_items.1.unit_price': u'-5.00 is less than minimum value 0'}

I got This Error whenever i pass line with the negative unit price as discount . 

[Aaron]

Hi @mahesh_teck,

You got that error because a negative amount is not allowed.

[SampsonProjects]

Then why the hell can't numbers be negative?

there is ZERO logic to restricting LineItems to Positive numbers if they aren't validated against the total

[matticus]

I know I'm late to the party here, but I agree with SampsonProjects.  Why can't we add discounts as negative value line items?  This is very poorly executed and the problem remains four years after it was brought up.

[Renaissance]

Just to be clear on the problem,

You are speaking of line items as the line items object that accepts an array? There are numerous ways to work around this, I am quite certain.