[Noob question] How to detect that object exis on blueprints

Hello everyone, I’m trying to make an object appear when the mouse is clicked, and if the object exists, then the old one is destroyed, and a new one appears, but I can’t find a check that an object of this class already exists. Traing like this

Just save it to a variable. Drag the Return Value out and Promote To Variable. Then when you want to check the object, check if the variable Is Valid.