Finding the correct and your unique Serial Number is a critical step for successfully installing and activating your software. While the product key is often standardized for specific versions, serial numbers are unique to your specific purchase or subscription. What is the AutoCAD 2020 Product Key?

Unlike the product key, your serial number is unique to your license. You can locate it through several official methods: Look up product keys - Autodesk

If your software is part of the AutoCAD Design Suite Premium 2020 , you must use the key 768L1 .Using the wrong key will result in activation errors, even if you are installing the correct version of the software. How to Find Your Serial Number