How to stop repeatetive google notification response from google check out

Question

I am integrate google checkout for payment.every thing going in perfect way,but at last in response handler,response of order coming repetitively. i had try to many things but i unable to find that how to stop "repetitively response. " because of this size of file 'googlemessage.log' increases every time.

                             $Gresponse->SendAck(null, false); 

but this can's help me.

Answer 1

You need to acknowledge each notification with a HTTP 200 response code and the serial number of the notification:

http://code.google.com/apis/checkout/developer/Google_Checkout_XML_API_Notification_API.html#responding_to_notifications

Google Checkout will try to resend the notification for up to 14 days or until you acknowledge it.