> For the complete documentation index, see [llms.txt](https://doc.duaer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/build/debug-executions.md).

# Debug a past execution in Duaer

In Duaer, open a past execution and use Debug in editor to pin that run’s data on the canvas, then change a node and run again.
## Pin that run back onto the canvas

1. Open Executions and select the run.
2. Select Debug in editor. You can also select Copy to editor and open it on the canvas.
3. The nodes keep that run’s output. After you change a parameter, select Execute step to rerun that node without calling the outside system again.

Pinned data is for tests. Production executions do not use pinned output. Refer to [Pin data in Duaer](/data/data-pinning.md).
## Questions

### Does Debug in editor in Duaer change the published version?

No. It loads that run’s data onto the canvas so you can edit. Production keeps the published version until you publish again.