License Key Not Available Wincc Logging For Runtime Advanced Link Jun 2026

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.

: If the license is already installed but shows as "defective" in ALM, it may be due to an improper system shutdown. You can attempt to repair it using the Restore function in ALM or contact Siemens Technical Support . If you’ve encountered the error you aren’t alone

: Open the Automation License Manager to verify the key is present on the local machine and not marked as "defective". If you’ve encountered the error you aren’t alone