License: Key Not Available Wincc Logging For Runtime Advanced Link [best]

If you are trying to configure "Tag Logging" or "Alarm Logging" to a file, and you only have the standard Runtime license installed, the system will throw the "License Key Not Available" error the moment the archive service tries to initialize.

The error specifically points to the license. This is an additive license (floating or single) that must be transferred to the target PC running the runtime application. Trigger Mechanisms

The Automation License Manager (ALM) triggers this alert under three specific conditions: If you are trying to configure "Tag Logging"

Are you seeing this error during on an IPC, or just while simulating your project in TIA Portal?

Siemens licenses come in different types: Use the option

Siemens licenses create a hidden cache file. Corrupt cache breaks the "link."

If the license appears gray or has a red cross, it may be corrupted. Use the option. it may be corrupted.

: If you have the license but still see the error, it may be marked as "defective" in the Automation License Manager (ALM) due to an improper IPC shutdown. You can attempt to restore it or contact Siemens Technical Support .