> ## Documentation Index
> Fetch the complete documentation index at: https://docs.convocore.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Rewind Nodes

> Learn how to use the Rewind Nodes feature in the Canvas to navigate back through nodes during conversations.

The **Rewind Nodes** feature in the Canvas allows your chatbot to navigate back to previous nodes during a conversation. This is useful for error handling, retries, or clarifications. The level of rewind determines how far back the chatbot can go in the flow.

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## What is Rewind?

Rewind functionality lets the chatbot "rewind" to revisit previous nodes. This is controlled via the **Router Configuration** tab in the node settings, where you can define how many levels back the chatbot can go.

* **Level 0**: No rewind (default behavior).
* **Level 1**: Go back one node.
* **Level 2**: Go back two nodes.
* **Level 3**: Go back up to three nodes.

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## Configuring Rewind Nodes

### Steps to Enable Rewind

1. Open the **Router Configuration** tab for the desired node.
2. Locate the **Rewind Level** slider.
3. Adjust the level (0–3) based on how far back you want the chatbot to rewind.
4. Save the configuration.

**Example**: Set **Rewind Level 2** to allow the chatbot to go back two nodes when needed.

**Visual Placeholder**:\\

<img src="https://mintcdn.com/convocore/45Ecjxi6tZs54Ia5/assets/rewind_nodes.png?fit=max&auto=format&n=45Ecjxi6tZs54Ia5&q=85&s=0bc33af11bac2d38a3490a3292b68958" alt="Rewind Configuration Example" width="394" height="164" data-path="assets/rewind_nodes.png" />

*Image showing the Rewind Level slider in the Router Configuration tab.*

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## How Rewind Works in Conversations

When rewind is enabled:

1. The chatbot can automatically or conditionally return to previous nodes based on user input or flow logic.
2. The conversation context is maintained up to the selected rewind level.

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## Use Cases for Rewind

1. **Error Handling**:

   * If a tool integration fails, the chatbot can rewind to the previous node to retry or handle the error differently.

2. **Clarifications**:

   * If the user provides unclear input, the chatbot can return to the question node to ask for clarification.

3. **Flow Redirection**:
   * When a user changes their mind, the chatbot can rewind to a decision-making node to reprocess their request.

**Example Use Case**:

* **Scenario**: A scheduling chatbot asks for a time, but the user enters invalid input.
  * The chatbot rewinds to the previous node to ask the user to re-enter the time.

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## Testing Rewind Functionality

1. Set up a node with a **Rewind Level** in the Router Configuration.
2. Use the **Test Tool** to simulate user inputs and verify the rewind behavior.
3. Observe how the flow returns to previous nodes and ensure the context is preserved.

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## Best Practices for Rewind Nodes

* **Limit Levels**: Use rewind levels conservatively to avoid creating overly complex flows.
* **Context Management**: Ensure previous node contexts are preserved for a seamless user experience.
* **Test Thoroughly**: Simulate various scenarios to ensure the rewind functionality works as intended.

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### Example Flow with Rewind

**Scenario**: A customer support chatbot:

1. **Start Node** greets the user.
2. User enters an unclear request.
   * Chatbot rewinds to the previous **Default Node** to clarify.
3. If the user corrects their input, the chatbot resumes the flow.

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Ready to explore more advanced features? Move to [Testing Flows](testing-flows) for insights into flow validation!