Viewing Replay Data¶
Replay lets you load past workflow execution data and step through it visually on the canvas. This is invaluable for understanding how a workflow actually behaved and for debugging issues.
Loading replay data¶
- Select an event node on the canvas (click on it).
- Click the Review flow button in the panel header. (If the model has unsaved changes, the modeler first offers to Save and review flow.)
- Review opens for that event: the modeler starts the live listener and fetches the execution history from the backend automatically.

Multiple executions¶
If the event has been triggered multiple times, Review flow mode shows an entry selector dropdown at the top. Each entry includes:
- Timestamp: When the execution occurred.
- User: Who triggered it.
- URL: The page URL at the time of execution.
Click an entry to view its execution steps. The dropdown is only shown when there are two or more entries.
Navigating steps¶
Review flow mode shows a list of execution steps. Each step represents one action in the workflow execution:
| Step type | Icon | Meaning |
|---|---|---|
| Started | Play icon | The workflow began executing at this event. |
| Execute | Arrow icon | An action was executed. |
| Add successor | Green check | A condition passed; execution continued. |
| Ignore successor | Red X | A condition failed; this path was skipped. |
| Access denied | Lock icon | Execution was blocked by permissions. |
Manual navigation¶
- Click a step: Jump to that step. The corresponding node or edge is highlighted on the canvas.
- Forward/Back buttons: Move one step at a time.
Auto-playback¶
- Play: Start automatic playback through all steps.
- Speed: Choose 0.5x, 1x, or 2x playback speed.
- Pause: Stop auto-play at the current step.
- Stop: Exit replay mode entirely and clear all highlights.
Canvas visualization¶
During replay, the canvas shows visual indicators:
- Node highlighting: The active step's node is highlighted.
- Edge indicators: Floating circles at edge midpoints show condition results:
- Green circle with checkmark: Condition passed.
- Red circle with X: Condition failed.
The canvas automatically pans to keep the current step's element in view, while preserving your zoom level.
Bidirectional sync¶
The replay system syncs in both directions:
- Click a step in Review flow mode --> the canvas highlights the corresponding element.
- Click a node on the canvas --> Review flow mode jumps to the first matching step.
Live session
Entering Review flow on a saved model with replay/test capability starts listening for execution data and loads any available history automatically -- no extra clicks needed.
Resizing sections¶
The Review flow sections (execution controls, step data, global tokens, template tokens) are vertically resizable. Drag the horizontal separator between sections to adjust their height. Your preferred proportions are saved to local storage and restored on the next visit. See Review flow > Resizable sections for details.
Empty state¶
When no replay data is loaded, the panel shows guidance messages explaining how to load data or run a test, depending on what capabilities are available.