In Google Analytics, Ecommerce Reporting and tracking is not available by default. To enable Ecommerce reporting you will need to follow these steps:
You will have to enable Ecommerce reporting for a particular profile to view Ecommerce reports. To enable Ecommerce reporting you will need to modify your profile level settings as shown in the following screenshot, and choose Yes under Ecommerce tracking:
Note: You have to enable Ecommerce settings for every single profile under which you want to track Ecommerce transactions.
Ensure that you have included GATC tracking code on your receipt pages. The GATC tracking code can be found in your profile settings as shown in the following screenshot. For Ecommerce implementations, place GATC near the top of the page instead of the bottom of the page.