# Debug and re-run past executions

You can load data from a previous execution into your current workflow. This is useful for debugging data from failed production executions: you can see a failed execution, make changes to your workflow to fix it, then re-run it with the previous execution data.

## Load data

To load data from a previous execution:

1. In your workflow, select the **Executions** tab to view the **Executions** list.
2. Select the execution you want to debug. Mosaic Workflows displays options depending on whether the workflow was successful or failed:
  * For failed executions: select **Debug in editor**.
  * For successful executions: select **Copy to editor**.
3. Mosaic Workflows copies the execution data into your current workflow.