The error message typically appears when a WinCC project includes data or alarm logging but the necessary separate license key is missing on the target computer. Understanding the Licensing Model
If you're certain your project requires logging, the next step is confirming the license is missing. license key not available wincc logging for runtime advanced
: The error will also appear during simulation if your engineering station is connected to a PLC and you lack the proper runtime option licenses. The error message typically appears when a WinCC