> For the complete documentation index, see [llms.txt](https://docs.tesenso.com/tesenso-iot-cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tesenso.com/tesenso-iot-cloud/rule-engine/rule-engine/flow/checkpoint.md).

# Checkpoint

Publish a copy of the message to the selected rule engine queue. The original message is marked as successfully processed once the target queue acknowledge publish of the copied message.

Useful if you want to mark message as high priority or process messages sequentially grouped by originator of the message. See default queues or define your own queue.