I installed the Paypal IPN contibution a few weeks ago. I didn't test it properly, that is a little stupid. Today our first customer uses Paypal. We see his money on our Paypal account, but we don't see his order in osC. I read in the documentation that the order should be saved when the 'Confirm order' button is pressed in 'checkout_confirmation.php'. That doesn't happen! Why? The customer is redirected properly to Paypal. Paypal IPN settings: Enable: True Move tax.. :True Set preparing... : Preparing [PayPal IPN] Set PayPal Ack...: In behandeling [PayPal IPN] Gateway Server: Live Transaction Type: Aggregate I have also installed the following contributions that are payment related: idealm_V12 Must Agree to Terms v1.5.6 Payment_fee 1.2.3 STS 4.1 Ultimate SEO URLs 2.2.2 How is Paypal IPN triggered to save the order? Where should I have a look at?