The "License key not available" message for WinCC Logging for Runtime Advanced
Siemens licenses are version-specific. A license for WinCC Logging for Runtime Advanced V16 will not work if your PC is running WinCC Runtime Advanced V18 . The "License key not available" message for WinCC
Data logs or alarm logs were accidentally created in the TIA Portal project, triggering the licensing requirement even if the user didn't mean to log data. Step-by-Step Resolution Guide The "License key not available" message for WinCC