Split experiment traffic evenly in one click

Experiments have a new Even split switch that divides traffic equally between the control group and every variation. Whole percentages cannot split traffic evenly three, six or seven ways (33% + 33% + 34% is not even), so with the switch on each group gets exactly the same share.

You will find it next to the variations in campaign experiments, in widget experiments and when you create a new experiment. While it is on, the individual percentages are locked and show the equal share (for example 33.3%). Add or remove a variation and the split adjusts automatically. Turn it off to set the shares by hand again.

The switch can be changed until the campaign is deployed.