Thread: Fraud orders and Paypal

Anyone getting an occasional paypal order in fraud status. We are getting about 1-2 in every hundred that are flagged in the Admin as fraud. These orders are not showing up unless you specifically search for fraud status. Prior to discovering that the orders were accually in our system, we attributed it to a "click to return to merchant" snafu on the customer's or paypal's fault.

We still recieve emails from paypal on the orders, just no order showing in our system without specifically searching for fraud status. Taking a look at the orders in the admin, that are showing as fraud, show no common factors. Long standing customers who I know personally have been flagged as fraud.

On a related side note: If the order is flagged as fraud, is the inventory removed?

Thanks in advance

Kevin

There was an issue last summer with PayPal IPN, where they were rounding the cart total in the IPN callback, so that the IPN total was different than the original cart total.

These totals are tested to prevent "cart stuffing" with a second browser window during checkout.

This issue was circumvented in v7.0.2.0 by allowing up to a nickle difference between the original cart total and the IPN callback total:

Code:

if (NetTotal != PaymentTotal)

-- changed to --

if (Math.Abs(NetTotal - PaymentTotal) > 0.05M)

inside paypalok.aspx.cs and paypalnotification.aspx.cs.

CAn any one from storefront please help me out wht exactly below function check.

if (Math.Abs(NetTotal - PaymentTotal) > 0.05M)

where is math.abs check

That'll return the absolute value of a Decimal number. It checks the incoming payment from paypal whether it matches the cart total, otherwise, the system will mark it as fraud.

im bit confused with this function

if (Math.Abs(NetTotal - PaymentTotal) > 0.05M)

My net total is 29.23 $
Papyment total is 29.28 $

then please do let me know whether it executes condition 1 or condition 2

if (Math.Abs(NetTotal - PaymentTotal) > 0.05M)
{
condition1
}
Else
{
Condition 2
}
end if

29.23 - 29.28 = .05
math.abs(0.05) = ?
wht does 0.05M represents




Cheers
Hirish

if (Math.Abs(29.23 - 29.28)) > 0.05M
{
Condition 1
}
else
{
Condition 2
}

With the given value, that condition executes #2.

Math.Abs(29.23 - 29.28) - basically this returns .05, without the Math.Abs function it's (-.05)

0.05M could mean any number after 5 e.g. 0.05012345

When is the Condition 1 get executed?

if (Math.Abs(NetTotal - PaymentTotal) > 0.05M), meaning any number greater than .05M e.g. .06 - up.

if (Math.Abs(29.23 - 29.28)) > 0.05M
{
Condition 1
}
else
{
Condition 2
}

----------------------------------------------------
if (Math.Abs(29.23 - 29.28)) > 0.05M

math.abs(-0.05)>0.05M

0.05 > 0.05M

----------------------------------------------------

If ( 0.05 > 0.05M )
{
statement 1;
}
else
{
Statement 2;
}


Please let me know whether statement1 will get executed or statement2 for my example.

Obviously this condition "if ( 0.05 > 0.05M )" is false, so statement 2 will be executed.

but statement 1 got executed and updated order is fraud.