When to use it
Use it when a project is mostly fine but something could go wrong. Saying “on track” plus the one risk and your plan for it tells your manager the truth without alarm. It also means they won't be surprised later if the risk turns into a problem.
Example
Manager: “How's the rollout?”
You: “We're on track. One risk: the vendor is late on the hardware, so I've asked for a partial shipment Friday.”
In an email or Slack message
For a written weekly update, use three lines: “Status: on track. Risk: vendor hardware late. Plan: partial shipment Friday, I'll confirm Monday.” Your manager can scan it in seconds.