Go to Admin > Settings > Messages.
Open Operational delivery settings to review the business-wide alert switch, schedule health, recipient channels, and attention order. Close it when you are done; the per-notification controls stay visible.
Operational attention shows Needs setup when the business-wide switch is on but schedule health alerts are not enabled. Only an owner or manager can change this setup.
Operational alerts are off by default until an owner or manager enables the business policy.