Huds Communication And Blueprint Communication

Hi Everybody,

I hope ull help me with this simple Idea.

I created 2 Huds (widgets) with buttons refering to some items. Lets say that i have a Simple Hud that represents a Market (That We call A) With items that is displayed from LevelBlueprint. And that the player has a Hud with items he owns (That We Call B) and that he bought from the market with certain conditions (money, level, experience …)…
How can i make this 2 huds communicating.

Plz dont care about conditions. I want just to understand the way, i can “lock and unlock” or “add” buttons of the items on the B widget when they are bought from the A widget.

Thank you