Why can't I start my experiment?

The review still shows critical issues. As long as a critical issue is open, “Start” stays locked. If your experiment overlaps with another one, you can deliberately accept the overlap; that lowers the evidence by one level.

1. 01Read the list above the start button. At the bottom it says how many issues are blocking the start.
2. 02Fix the issues in the plan, such as a missing metric or threshold.
3. 03For an overlap: enter a reason under “Deliberately accept the overlap because …” and click “Accept”.
4. 04When it says “No open issues. The plan is ready to start.”, click “Start”. If the start day is in the future, the button is called “Schedule”.