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Autodesk FlexSim activation process

October 14, 2026 Ken Williams

Issue: 

How do I activate Autodesk FlexSim. 

Solution:

There are 2 different processes to activate Autodesk FlexSim. It depends on the version:

For FlexSim 2027 and Newer:

  1. Launch Autodesk FlexSim on your computer.
  2. A splash screen will prompt you to log in.Sign in using the email address and password associated with that Autodesk Commercial account.
  3. The software will automatically check your subscription status in the background and activate itself.

For FlexSim 2026 and Older:

https://forums.autodesk.com/t5/flexsim-knowledge-base/standalone-activation-online/ta-p/13525056

  1. Go to your portal, navigate to the Licenses choose the List section, and expand your product folder.
  2. Look for an Activation ID string (it usually looks like a long string of letters and numbers, e.g., companyname.com01-ABCDE...)
  3. Open FlexSim, click Help > License Activation, paste that ID, and hit Activate.

About the Author

Ken Williams

Installation Technical Support Specialist<br><br>Ken Williams has over 20 years of experience as a systems administrator helping organizations with installation, configuration, and maintenance. At IMAGINiT, Ken puts his knowledge of Microsoft, SQL, servers, and Autodesk to work ensuring clients are able to stay up-and-running, install their software easily, and maintain their solutions.

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