License Key Not Available Wincc Logging For Runtime Advanced < Limited — 2025 >
Many users forget they have to assign the logging license to a specific tag quantity.
If the license exists but is corrupted:
Once you have the license working, follow these practices to avoid recurrence: license key not available wincc logging for runtime advanced
Siemens differentiates between several licenses:
If you installed a Base RT license but try to use logging, the system reports the license as unavailable. Many users forget they have to assign the
In ALM, select license → Properties → Check:
If you are running WinCC Runtime Advanced as a service (headless operation), the service account may not have permission to read the license file. If you installed a Base RT license but
Temporarily use a trial license from SIEMENS License Manager → Request Trial License to isolate hardware/ALM issues.
Follow this systematic approach to resolve the error.