Participants required by the resolved multi-participant command.
This numeric value (int32) belongs to FInteractionRuntimeResolvedPrompt under InteractionRuntime.
Designers configure this value in the owning asset or object details panel, while Blueprint logic can read the resolved value at runtime.
UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "InteractionRuntime")
int32 ResolvedRequiredParticipants = 0;