2d mobile Multi Scene inventory

I have an inventory that works but it's in a scene by its self. I need to figure out how to make a quest give item in another scene and add it to inventory or craft and take away. maybe even just how to make button give item in one scene to other scene. sorry I'm not an expert at coding I can't start from scratch but I can understand code and edit it no problem. Will upload project example when I can if needed. Any help will be greatly appreciated. Thanks in advance.