Before enabling an Events rule that should invoke a Function and al…

Question

Before enabling an Events rule that should invoke a Function and also notify a topic, what must already be true about those destinations?

Accepted Answer

The Function, Notifications topic, or stream named as an action must already exist; the rule picker does not create them. — Create the Function, topic, or stream—and the IAM that lets Events deliver—before you point a rule at them. The picker will not invent the destination. A disabled action stages safely; a missing OCID fails.

Answer

Events will auto-create a Function and topic from the rule name when you enable the rule.

Answer

Only the stream may be pre-created; Functions and topics are spawned lazily on first match.

Answer

Destinations are optional placeholders; Events fabricates OCIDs at delivery time.

Before enabling an Events rule that should invoke a Function and also notify a topic, what must already be true about those destinations?

Short Explanation

Full Explanation