We're A/B testing a 3 week standard mini- drip nurture campaign and a 3 week mini-engagement program. In each case we're splitting off a region of our sample and running an A/B test (1.1 NAM).
![0EM50000000SyAa.jpg 0EM50000000SyAa.jpg](/t5/image/serverpage/image-id/4923iA6F14A25BA521543/image-size/large?v=v2&px=999)
Essentially, in the first week's flow if the region equals "X" then we request a campaign which sends 50% version A and 50% version B, just using random sample. Everybody else isn't in the test get a previously approved email (which we are not testing 1.2 ROW above sends a different email to that group)
![0EM50000000SyAV.jpg 0EM50000000SyAV.jpg](/t5/image/serverpage/image-id/4580iA5F98186FB15283D/image-size/large?v=v2&px=999)
Then we wait a week (either by wait step in the dri[p nurture) or by cadence (for the engagement program). We use a choice step on send email here to say send the 2nd version A email if you have been sent version A of the 1st email, otherwise send version B of the second email.
![0EM50000000SyAf.jpg 0EM50000000SyAf.jpg](/t5/image/serverpage/image-id/4925i552D592B3556DE0D/image-size/large?v=v2&px=999)
And then the same for week 3.
I don't see why we need to use a list here as recommended by https://community.marketo.com/MarketoArticle?id=kA050000000KytQ or https://community.marketo.com/MarketoArticle?id=kA050000000L6EBCA0.
Because we are only testing 2 emails I don't see how the lists will help me, but my team have some concerns. Would appreciate the communities view.
Pretty much the same process exists in the engagement program - the camapign used in the enaggement program requests similar campaigns to send the email.