This Zen Cart tutorial is meant to help zen cart users and store owners better understand the process behind the purchase and activation of downloadable products, since it is actually not as straight forward as one might think. It is still a very simple process, but on occasion, you might have that one confused customer who pays for a downloadable product, and does not get access to the activation link immediately afterward.
First of all, it is important for you to know that in zen cart stores that have been set up properly, download links are not made available to your customers until you have received payment for the product. Most payment modules commonly used with zen cart are configured so that new orders which contain downloadable products are automatically marked as ‘Orders Status: Pending’. In a nutshell, this means that your zen cart store will assume that you have not received your payment, and therefore, it should not give out the download link to the customer, until you tell it differently.
After you have verified through your payment gateway that the money has been safely transferred, you can activate the download links for your customer. This is very easy do do. Just log in to your zen cart admin area, and select the correct order. Click on Edit, and scroll down to the bottom of the page. Here, you will find a menu, where you can change the order’s status from ‘pending’ to ‘processing’. This tells your zen cart that you have received your payment, and it is okay to let the customer download the product. They will now be able to do this by navigating to their ‘My Account’ page and selecting the order.