> For the complete documentation index, see [llms.txt](https://interfacing.gitbook.io/interfacing-help-files/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://interfacing.gitbook.io/interfacing-help-files/end-users/exploring-apps/working-with-forms/applying-digital-signatures.md).

# Applying Digital Signatures

Authenticate actions using digital signatures.

Some workflows require **electronic approval or signature**. To verify your identity, the system sends a one-time code to your registered email address.

***

#### <i class="fa-signature">:signature:</i>  Completing a Digital Signature

1. Select the action that requires a signature (e.g., **Approve**, **Sign**, **Submit**).
   * The **Approval Authentication** modal opens.
2. Check your registered email address for the 6-digit verification code.
3. In the **Approval Authentication** modal, enter the code using the six input fields.
   * Enter each digit individually, or
   * Paste the full code to automatically populate all fields
4. Click **Submit** to confirm.
   * If the code is valid, the system completes the requested action and displays a confirmation message.
   * The signature can be accessed later via a PDF version of the form.

     → See: [Generating Templates](/interfacing-help-files/end-users/exploring-apps/working-with-forms/generating-templates.md)

{% hint style="danger" %}

#### Handling Common Issues

* **Incorrect Code**
  * **Message:** “Invalid code. Please try again.”
  * **Action:** Re-enter the correct verification code.
* **Expired Code**
  * **Message:** “Code expired. Request a new one.*”*
  * **Action:** Select **Resend Code** to receive a new code by email.
* **Canceling the Action**
  * **Action:** Select **Cancel** to close the modal without completing the action.
    {% endhint %}

***


---

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