is it possible to maintaining conversation during redirect to external url?I started paypal transaction with CDI conversation bean and next there is faces redirect to paypal page when I log in and doing payment and next paypal returning to my page and I want to have the same instance of my backing bean to remember details which I sent to paypal. When paypal redirects back to my page, he appends to url transaction token and payer ID but I don't have any information about quantity of products which user bought. So I want to remember the quantity from before redirect. Now, after paypal returns to my site I call method doExpressCheckout and I want to pass quantity and other transaction details because I can set entirely different details than before the transaction and there is possible strange situation when customer accept on paypal page that buying some products for 10$, but I set 100$ after paypal redirects again to my page and customer will have no idea how much he paid.I don't know why that this happens.I use SOAP api.