> For the complete documentation index, see [llms.txt](https://docs.docbits.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.docbits.com/administration-and-setup/settings/global-settings/document-types/duplicate-a-custom-validation-rule.md).

# Duplicate a Custom Validation Rule

Make a separate copy of an existing custom validation rule for a document type.

Use **Duplicate** when a rule is a useful starting point and you want a separate copy. DocBits copies the rule's definition; you choose the new rule's name and key. The original rule stays in the list.

1. Go to **Settings → Document Types**, open the document type you want to configure, and select **Custom Validation Rules**. The page shows the selected document type above its rule cards. See [Document Types](/administration-and-setup/settings/global-settings/document-types.md) for the other settings available there.
2. Find the source rule. Use the search field or the scope and status filters if the list is long. Open its three-dot actions menu and select **Duplicate**. You can copy a system default or a custom rule.
3. In **Rule Name**, keep the suggested name ending in “Copy” or enter a clearer name. The **Rule Key** is generated from that name. Select the pencil icon if you need to edit the key yourself.
4. Select **Duplicate** to create the separate rule. DocBits refreshes the list after saving. Select **Cancel** to close the dialog without creating a copy.

<figure><img src="https://578966019-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FT2n2w4uDCJvv7CJ5zrdk%2Fuploads%2Fgit-blob-baead90c378f3fe567999cd2cf8d7b0a4a51f74c%2Fs150-validation-rules-list.png?alt=media" alt="Custom validation rules with the duplicate action; configured names are hidden."><figcaption><p>Custom validation rules with the duplicate action; configured names are hidden.</p></figcaption></figure>

The **Duplicate** button needs both a name and a key. If saving fails, DocBits shows an error; correct the name or key and try again. Review the new rule before activating or changing it, because a copy starts with the source rule's definition.


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