Important note: As of April 9, 2019, Facebook will no longer allow a pre-checked state for the checkbox. Learn more
Until April 9th if you had the pre-checked checkbox on your Facebook page/store before you used Octane AI, then you will still have pre-check when you switch to Octane AI. The pre-checked checkbox permission is approved based on Facebook pages, and not bot platforms. So you can switch platforms without any issues as long as you are using the same Facebook page.
What If I Don't Have Pre-Check?
Facebook is no longer approving new pre-checked checkboxes. If you do not already have it, neither Octane AI, nor any other bot platform, can get pre-check for you.
However, there are plenty of ways to get more opt-ins on Messenger without pre-check. What Messenger Opt-In feature is the right one for my store?