Type of change
Please provide link to gitlab issue or ADR(Architecture Decision Record)
Does this introduce a change in the core logic?
Does this introduce a change in the cloud provider implementation, if so which cloud?
Does this introduce a breaking change?
What is the current behavior?
Notification creates PubSub subscriptions by itself, making infra-provisioning distributed and complicating maintenance.
What is the new/expected behavior?
Provisioning was removed, added validation that checks that the subscriber has all required configurations.