Required participant count for the route.
This numeric value (int32) belongs to FInteractionUIPromptContextPresentation under InteractionUI.
Runtime and UI code should treat this as resolved state from the owning object. Read it to present, branch, or debug behavior without re-authoring the underlying interaction data.
UPROPERTY(BlueprintReadOnly, Category = "InteractionUI")
int32 RequiredParticipants = 0;