License Key Not — Available Wincc Logging For Runtime Advanced Link Exclusive

If the Runtime cannot access the physical storage directory (e.g., an unmapped network drive or an ejected SD card/USB stick), it may throw a generic logging license error. Verify that the file path specified in TIA Portal -> Historical Data exists on the local PC file structure. 3. Clean the ALM Cache

Sometimes a similar popup appears for SmartServer even if not used. Disable the "CoRTSmartServer" service in Windows Service Manager if not needed. 4. Important Considerations If the Runtime cannot access the physical storage

to verify if the "Logging" key is present and shows a green status. If it appears as "defective," it may be due to an improper IPC shutdown; in this case, contact Siemens Technical Support to restore it. Verify Project Configuration : If you do not intend to use logging, check the "Historical data > Data logs" "Alarm logs" Clean the ALM Cache Sometimes a similar popup

Follow these structured steps to diagnose and eliminate the missing license prompt. Step 1: Verify the Active Project Requirements Important Considerations to verify if the "Logging" key

You upgraded your TIA Portal project and Runtime software (e.g., from V16 to V18), but your logging license is still an older version. Siemens licenses are generally version-dependent or backward-compatible, but older keys cannot activate newer software versions.

Choose the local drive (typically C: ) where licenses are stored. Locate the item: WinCC Logging for Runtime Advanced . Right-click the license and select .

The error is frustrating because it often appears after everything else is working perfectly. The root cause almost always lies in the gap between what you think you licensed and what is actually installed on the runtime machine.