Troubleshooting FileMaker Pro 15: Accessing Your License and Downloads
Email Confirmation: Look for an email from the FileMaker Store or Claris. It contains a link to your unique Electronic Software Download (ESD) page, where the license key is displayed.
FileMaker 15 reached its End of Life in 2019. Claris no longer provides technical support or security updates for this version. If you lose your original key, Claris may be unable to replace it, as they have transitioned modern licensing to encrypted certificates. For troubleshooting older keys, you can check the Claris License Key Assistance page. If you'd like, I can: filemaker pro 15 license key link
The Motivation: Necessity vs. Legacy
FileMaker Pro 15 , the license key is a unique 35-character code Troubleshooting FileMaker Pro 15: Accessing Your License and
Since public download mirrors for version 15 are no longer maintained on the main Claris Downloads page
license certificate file, version 15 relies on this alphanumeric key. Claris Support Finding Your License Key and Download Link Wait, for older versions like 15, they might
Wait, for older versions like 15, they might still sell them, but support might have ended. I should mention that support for 15 might not be available and suggest using a newer version if possible. Also, maybe they lost their key and need to retrieve it. In that case, they can contact Clarify Support with their purchase information to get it back.