What happens if I change the main site configurations when an A/B test is run?

First of all you will be notified when you try to publish that an experiment is running with the option to either "Cancel" or "Publish". If published, the A/B test settings will always take precedence. This means that;

• If A/B test is run on 100% of the traffic, the change in main site configuration will not show to anyone.
• If A/B test is run on < 100 % of the traffic, the change in main site configuration will show show for the part of the traffic that is not included in the A/B test.