: If you purchased your subscription online, your serial number is included in the fulfillment email sent by Key Information for Installation AUTOCAD2020 SERIAL NUMBER - Autodesk Forums
Using a fake or leaked serial number violates:
If you have a legal seat of the software, follow these steps to find your credentials: Log in to autodesk.com. Products & Services: Locate Civil 3D 2020 in your list.
If you encounter issues with your Autodesk Civil 3D 2020 serial number and product key, here are some common troubleshooting steps: