> For the complete documentation index, see [llms.txt](https://helpdocumentation.gitbook.io/user-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpdocumentation.gitbook.io/user-documentation/automation-apps-blocks/random-number-generator-block.md).

# Random Number Generator Block

You can generate a dynamic OTP inside your chatbot flow using the **Number Formatter – Random Number Generator**.

#### Steps to Generate OTP

1. In your **Bot Flow**, click **Add Automation App**.
2. Search for **Number Formatter**.
3. Select **Random Number Generator**.
4. Set the range:
   * **Minimum Value** → `1000`
   * **Maximum Value** → `9999`\
     (This ensures a 4-digit OTP is generated.)
5. Click **Run** to test the generated number.
6. Click **Save**.

#### Store the OTP

7. Use **Save Variable Value** or store it in a **Bot Field** (e.g., `generated_otp`).

The generated value can now be sent to the user and used later for OTP validation within the flow.

{% embed url="<https://youtu.be/bxxL2fsfvZY>" %}


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