Transfer Variable Between Bluprint

I hand the Explanation over to Zak who did a Fantastic Job on that Training Video.

Hello. I just began using blueprints the other day. Could someone walk me through step-by-step how to transfer a variable between two different blueprints while maintaining its value. For instance, setting the number of something in an actor and needing to call back that number to tell an inventory system how many there are.

Thanks.

This was exactly what I knew existed but couldn’t find, exactly what I was looking for. Thank you!