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Reference

Copilot: Experiments

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Open Copilot in the site admin and describe the result you want. Use the tables below to check the requests in this area, their approval steps and their available Undo.

Checked against the product’s code on 7 November 2026.

Creating or copying an experiment saves a draft. Starting, stopping and promoting a variation affect visitors and need approval. Archiving preserves evidence and requires an experiment to be draft or stopped. Unarchiving does not restart traffic.

Saved power plans, which estimate the sample needed for a chosen effect, and locked measurement plans have their own evidence requirements. Locking is permanent. The plan records its deciding method; only that method can authorize promotion. New plans require a positive guardrail limit and check that harm beyond it is ruled out. Earlier locked plans keep their recorded checks. A saved Results preference or a recorded decision does not itself change traffic. Undo is offered only when the request can reverse the change.

In the tables, Yes under approval means a separate approval is required before applying the request. Available under Undo means the request can be reversed. The specific receipt must offer Undo; it can be limited by the input, later changes or the state that was saved. No means this request provides no automatic Undo. Reading a fact has nothing to undo.

These are plain-language descriptions of requests, not text you must type exactly. Your role, configured connections and site capabilities determine which requests are available. See How copilot requests are governed.

Request Approval Undo
Start a draft experiment Yes Available
Read the experiment’s Results view No No
Evaluate and record a results decision No No
Set the site’s usual Results method and comparison view No No
Save a suggested threshold of caring No No
Save your preferred Results view for one experiment No No
Archive a draft or stopped experiment No Available
Undo a particular experiment archive No No
Copy an experiment’s setup into a new draft No Available
Read Configuration & QA, its settings and variation checks, for an experiment No No
Stop a live experiment Yes Available
Create a draft experiment No Available
Find measures to divide by in a results ratio No No
Migrate an older experiment to a locked measurement plan Yes No
List experiments and their states No No
Lock an experiment’s measurement plan Yes No
Read a saved power plan No No
Calculate and save a power plan No No
Read the evidence and setup needed for planning No No
Read an experiment’s saved power plan history No No
Promote an eligible experiment variation Yes Available
Read experiment results No No
Recompute stored experiment results No No
Explore an experiment’s results for a selected slice No No
Read an experiment’s daily timeline No No
Return an archived experiment to its saved Draft or Stopped state No Available

Return to the copilot request index.

Choose a request that matches your task, then ask the copilot. Review its proposed consequence before approving any change.