I think there’s a bit of missing information about what you want to achieve. How do those two blueprints interact (if they do)? Initially, it would be best to create a function like GetGlobalVariable() in the blueprint that holds that global variable (for programming best practices), which you can mark as ‘pure’, but depending on what you want to do, you might need, for example, to create an interface that serves as a bridge between both blueprints.
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