You can also use an event interface in your main widget.

Keep in mind that this event is best implemented in your main widget, otherwise it may have unexpected results!

To use it, you must to check the Use Interface Event check box and add a gameplay tag based on the Interface tag.

Add Advanced Attribute Interface to your main widget.

You will have two functions to implement.

The first, very important, Interface Id Tag. The same tag added to the component must be passed!

After that, just implement the On Attribute Value Change Based On Tag event.