...
NB: PLEASE DELETE THE CLEANER STACK ONCE COMPLETED. After the AWS native services associated with AUTOMATE+ have been removed from the connected account & once all six-pillars stacks are removed, you can select the Cleaner stack in "Stacks" and click delete. The cleaner stack will then be deleted.
After AUTOMATE+ has been removed from the relevant AWS account, you can remove the account connection from your AUTOMATE+ "deployed accounts" screen, by clicking the trash can icon “DELETE ACCOUNT” and selecting "YES" to remove.
...