Our SB automation works similar to our SP automation:
All automation is run at an ad group level.
The first column ‘No Automation’ shows all ad groups that are currently not automated.
The remaining columns are rule-sets. You can add ad groups from the "No Automation" column by clicking the checkbox followed by the 'move campaign' blue button.
Ad groups without Target ACoS can be added to rules that work with Target ACoS
Rules that require Target ACoS will not trigger if there is no Target ACoS added. This may seem obvious, but could be an essential blocked to your success.
Why can't I delete the ruleset?
Please make sure you removed all ad groups first