Shadow Transaction

[Josiah]

I noticed in my testing that for every sale that is made, a duplicate one shows up with the same PayPal ID, but a different IP address. [see screenshot below] Does this have to do with IPN? What can I do to eliminate this?

http://www.josiahmackenzie.com/temp/transactions.jpg

[mark]

Hello,

do you use PayPal subscriptions?
I'm not sure it is PayPal IPN problem, it seems more like you are calling sale registration code from two different places.

You can avoid this problem by setting 'Automaticaly decline multiple repeating sales that have the same (nonempty) Order ID as initial sale' in Settings - Fraud protection.

But to find out what's going on, you should set 'Debug transactions' to On in Settings, then try test sale again and send me the events logged in History. From these i'll be able to find out what is causing it.

regards,

mark

[Josiah]

Hello Mark....

No, I'm not using PayPal subscriptions.

Actually, I am passing transaction details along to a PHP script using PayPal's "Auto Return" feature. I think that may be the problem.

I set the 'Automaticaly decline multiple repeating sales that have the same (nonempty) Order ID as initial sale' feature, but that still doesn't help.

You can see a log of a sample transaction here (http://www.orangeboxrss.com/log.htm).

Please advise.

Thanks,
Josiah

[mark]

Hi,

the problem is clear now.

You are using two ways of registering the sale - paypal IPN, and invisible image.
When you integrated using paypal, you don't need to put invisible image to your thank you page because paypal.php script will register the sale.

with regards,

mark

[Josiah]

So I just take out that image and everything will be good?

Thanks!

[mark]

yes, but make a test again :)

[Josiah]

I did the test, and everything worked perfectly. Very, very cool. 8)

Thanks so much.