How can I remove the email validation tools from the campaign since they have already run without breaking anything? Is it as simple as deleting the columns, or will that break something?
Yep, removing would break stuff here since the preset conditional formulas are already in place and subsequent columns depend on that. Happy to troubleshoot this for you if you share the link to the table.Overall, it's best to opt-in or out when setting up the waterfall, before saving it.
There we go, I just updated the formulas for each of the email finders so they no longer depend on the validation step, and added another column where it shows the first email available from any of them if you need that.