“My Google Calendar has this experiment recheck with my data analyst. Anything that is price changes I really care about — every time there's a price or discounting thing I would always recheck after, depending on what we are selling, 3 months, 6 months.”

Schedule a calendar recheck for every price or discount experiment — 3 to 6 months out

The discipline of rechecking experiments on a calendar cadence is what separates operators who learn from those who repeat mistakes. For pricing and discount experiments, a 3-6 month delay is usually needed for annual-plan cohorts to mature enough to show renewal behaviour. Book the follow-up at the same time you ship the test.