Please provide a way to programmatically delete a subscription, ofcourse this should have all the necessary warnings/checks like for RGs.
We have a way to programmatically create a sub, also provide one for deleting programmatically, ofcourse after warning in no uncertain terms that this is going to be destructive and all resources will be lost forever irrevevocably and verifying that is indeed the customer wants, before the actual deletion.
Jiri Pihik commented
There's a preview API to cancel subscriptions:
You can cancel them programmatically, that will put them in "Disabled" state. Costs are not incurred while in Disabled state. There's 30 days grace period after which they will be automatically de-provisioned.