Forum Discussion
For when you forget to add a Control group before launching your Canvas
You know that feeling when you launch a Canvas and realize you forgot to add the control group but then you can't go back and add one in without duplicating your canvas and launching a new one?
Feel free to tell me if this solution is obvious (I will be sad that I hadn't thought of it before), or if there is a gotcha I'm missing. But today I realized I could just add a second variant that just has a delay step and treat that as a control group. Another bonus, you can increase the size of this variant (i.e. 10%, 5%, 20%) to be larger than when you launched the Canvas if needed!
2 Replies
Hey Ashley! We just tested this, and we were ABLE to add a control group to a previously launched Canvas. Can you confirm?
But regardless, your solution is definitely a possible workaround! The only thing to consider is how the data shows up on the reporting side. We believe there should be a separate object/bucket for Controls vs one for Variants.
If a team is using a Variant to act as a Control, they most likely will have to specify in the Variant name that it's a "control" to be able to distinguish from the other Variants that are actually Variants.
That's what I did, named it "Control"! But yes, I was not able to add an official control group to an already active canvas. I get a message that says "You may not increase your control percentage after launch."
