Some payment processors will allow you to specify a script to be run on successful completion of a payment. Such a script could be used to automatically update the order status in mambo-phpShop so that you don’t have to manually tie up all of your online receipts with your product orders.
Another advantage of this process is that when you're selling downloadable files, you don't have to set the Order Status that enables the Download (this sends out the Download-ID email) manually. This is done automatically by the script.
See the Section "Pre-Configured Payment Methods" for more details on specific payment gateways.
Other payment service providers may use different methods of automatically notifying you when a payment is received. Again, it is probably easiest to get your web designer to sort out the requirements for this, but if you need to do it yourself, check with your payment service provider as to what their requirements are. Often, automatic notification is referred to as ‘IPN’ or ‘Instant Payment Notification’ .