`s3:ObjectTransition:Complete` and `s3:ObjectTransition:Failed` events can be used to monitor transition events between the source cluster and transition tier. To watch lifecycle events, you can enable bucket notification on the source bucket with `mc event add` and specify `--event ilm` flag.
Note that transition event notification is a MinIO extension.
## Explore Further
- [MinIO | Golang Client API Reference](https://docs.min.io/docs/golang-client-api-reference.html#SetBucketLifecycle)