Working with a third party company which takes care of ampscript for email and subject lines. They are using variables to generate different subjects based on a columns in a data extension.
The column names they are using is "Subject" and values are either A or B and "Segment".
Example usage = Segment = outdoor and Subject = A = display "Subject line A will go here" Segment = outdoor and Subject = B = display "Subject line B will go here" This goes on for like 4 more scenarios and the email content is also dynamic as well.
So they are using a variable like %%=v(@subjectLine)=%% to pull everything in. Everything works perfect.
Now, in terms of execution and doing an actual dynamic subject line test, I know there really isn't much out of the box with Salesforce Marketing Cloud. The subject line test we want to mimic would be:
20% Subject A /20% Subject B and send the winning version based on opens. I know Journey builder is unable to achieve this this. The regular AB test tool is ideal but I don't think the winner can be picked up dynamically here.
So I'm looking for work arounds/ideas to make things easier from a setup stand point if any. This client doesn't have sendlog setup on their account. I think I saw one post relating to that somewhere.
We could always drop ppl into a master DE, tag them accordingly either subject A or B. Create a decision split for Subject A and another one for Subject be and send single emails that way. Keeps everything together in one place. After the send (testing period) look into the metrics and figure out which path had the better open rate and send the winner manually. But yeah, more hands on here to accomplish what we want.