I have no experience with the eZ shop functionality, but it seems to wait some seconds until the value is_temporary is 0.
As far as I've studied the code, I think it's waiting for the shop/checkout operation to finish. eZShopOperationCollection::activateOrder uses $someEZOrder->activate( ), which sets is_temporary to 0. The pre-checkout workflow however doesn't finish.
Can you do some virtual payings with the Paypal sandbox? If an order get's payed, it should do a callback to your site and the workflow will finish (and with it the checkout operation).
nothig more after that myserver is accessible from internet.
All is working fine but not the last notification that allows payment to be ok.
do I need a special paypal administration configuration?
do i need to modify the ezpaypalchecker.php
do I need to modify the ezpaymentcallbackchecker.php(I have modify ezpaymentgatewey for sending multiref basket) what can I do with the "token"?