Hi Bruno,

It is not possible to "get" the card variable from an automation script directly, as the script is not aware of how it is triggered, this could also be from e.g. a scheduled task, and in such case there might not be any cube session with an active card variable.

In order to use the variable in a script, you need to inverse the logic: first create a script that accepts an input parameter. Then you can e.g. add a button to the visual overview to start the script, and pass the value of the card variable to the script by using a [cardvar: ] placeholder in the script parameter value when starting the script.

You can find more details in these documentation articles:
Placeholders for variables in shape data values | DataMiner Docs
Linking a shape to an Automation script | DataMiner Docs