Based on thousands of support tickets, these are the four most frequent reasons users face the "License Key Not Available" alert:
the HMI project completely (Software - rebuild all) and download/transfer the updated project to the Runtime PC. Summary of Best Practices
This article provides a definitive guide to diagnosing, fixing, and permanently resolving this licensing conflict. Based on thousands of support tickets, these are
: If the IPC was not shut down properly (e.g., power failure), the license may be stuck in a "defective" state. You may need to use the ALM Check function to recover it.
If you don't need logging, check your project for configured or Alarm Logs and delete them to remove the license requirement. SmartServer Popup You may need to use the ALM Check function to recover it
Verify you have purchased and transferred the license key via Automation License Manager (ALM) . Existing License Showing Error
Follow these steps in order to diagnose and eliminate the error message. Existing License Showing Error Follow these steps in
Imagine you have just finished commissioning a high-end IPC with SIMATIC WinCC Runtime Advanced
In ALM, drag and drop the license from the source drive to the of the Runtime PC. 4. Upgrade if Necessary
To fix the error, you must first understand the architecture.
: Ensure this checkbox is unchecked in Runtime Settings if not required by your application.