Display ad testing protocol - Minimum impressions for A/B testing
What are the minimum impressions to run in order to have a stable sample for a display ad creative A/B test?
Or, should a minimum number of orders or conversions be the metric, if the goal of the campaign is orders?
We can't seem to find any research on this topic. We may go with wanting to see 50 orders on each ad prior to making a call on which ad performed better.
Thanks for your help!