Side note: even if you shut down every service in the account, if something outside of AWS is connected to it, like Datadog, you will still incur charges. I'd recommend deleting the account if you can.
Thanks for the insight! I'm sure it costs Datadog a lot to continue to query connected accounts even after the user has cancelled the Datadog service. I reported to them, hopefully they take measures to fix. It would also be nice if integrations could be blocked or de-authorized from the AWS side, but I guess we can't ask for too much in 2024.
> It would also be nice if integrations could be blocked or de-authorized from the AWS side
I have no idea how DataDog integration works but if I had to guess I'd expect to setup an IAM account for them to use? If so, you could delete the IAM account they're using.