You see the screens for generating a request code in the product activation wizard only if your computer isn't connected to the Internet. To generate a request code with the product activation wizard

You don't need a request code for subscription software or to access your software online using a serial number and product key. You need a valid serial number and product key to generate a request code for your perpetual license software. Note: Request codes and manual activation are required only for perpetual license software. Generating a request code is the first step in the process of manually activating your Autodesk software. Request codes are necessary only if you have perpetual license software and need an activation code to manually activate software on a computer with no Internet access.

This change doesn't apply to subscription network licenses or previous versions that you already activated offline. After you activate online, you can continue to use 2021 software and later offline. Note: Autodesk no longer supports offline activation for 2021 products and later. If you have a perpetual license, you can activate your software by going online only once.

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