Describes the things that you must consider while setting up Multivariate tests in VWO.
- The only way to add multiple changes to a variation is by using custom JS/ CSS.
- The EDIT CODE and ADD ELEMENT options are not present in the Visual Editor for Multivariate test.
- A new section is to be created in a Multivariate test whenever you change any element. When you further modify that element, the section would remain the same. However, on selecting any other element, another section is created. While the test is running, VWO will serve the combinations of those sections. If there are 2 sections, the number of combinations would be 2*2 = 4.
- You cannot add the custom changes once the test has been started or paused.
- You cannot delete a variation once a test has started but can disable it.
- Running a Multivariate test is useful only when the website receives high traffic.
In a Multivariate test, the combi cookie value differs from the one generated in an A/B test. This is because VWO automatically creates various combinations for the applied set of changes. The combi cookie value in a Multivariate test is a combination of the Control and Variations selected for different sections. If Control is selected, the section will have a value of 1, and if Variation is selected, the section will have a value of 2.
For example, if the combi cookie’s value appears as 1%2C1%2C1%2C2, it is interpreted to 1,1,1,2 as “%2C” is the ASCII value of comma separator. This means, in your combination, VWO has chosen CONTROL for the first three sections and VARIATION for the last section.INFO: Combi cookie is generated when a user is chosen for a particular version for a test. This cookie ensures that users see the same combinations they became a part of in the first visit.