: You have the base WinCC Runtime Advanced license, but you have not purchased or installed the WinCC Logging option.
While WinCC Runtime Advanced handles standard HMI tasks, historical data logging is a separate, billable option that requires its own dedicated license key. Why This Error Happens : You have the base WinCC Runtime Advanced
If you’ve encountered the error you aren’t alone. This common pop-up appears in Siemens TIA Portal when the software attempts to record historical data—such as alarms or tag logs—without a valid license for the logging option. This common pop-up appears in Siemens TIA Portal
The [Automation License Manager (ALM)](siemens.com (alm)-?dti=0&lc=en-WW) is the central tool for managing all Siemens software keys. WinCC Logging for Runtime Advanced - 6AV2107-0GA00-0BB0 How to Fix the Logging License Error 1
The "License key not available" message typically triggers under three specific scenarios:
: If your Industrial PC (IPC) shuts down abruptly (e.g., power failure), the license may stay "locked" or appear defective in the Automation License Manager (ALM) . How to Fix the Logging License Error 1. Verify and Install the License in ALM