=FormulaProof
1

Report

Something here doesn't work

Every formula on this site ran in a real Google Sheet before it was published. That catches code that breaks. It does not catch advice that was bad to begin with, or a formula that worked in July and stopped working in November because Google changed something.

That is what this form is for.

What happens next

  1. It gets read. Usually the same day.
  2. The case goes back through the harness, in a real sheet, and the run is published.
  3. If we were wrong, the page says so, with the date it was corrected. The old claim is not quietly deleted.