> For the complete documentation index, see [llms.txt](https://manual.blocworx.com/blocworx-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.blocworx.com/blocworx-documentation/bloc-editor/managing-a-field/field-rules/cannot-be-equal-another-local-field.md).

# Cannot be Equal Another Local Field

This is a simple rule that prevents a piece of data being the same as a value in a different field that is currently in the form you are filling out.\
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For example, if you wanted to force the user not to use the same name for their Next of Kin as their own name you could have two fields:\
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\&#xNAN;***Your Name***\
***Next of Kin***\
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On the Next of Kin field you could set this rule so that it cannot be "Your Name".

![](/files/-Ma4m9FzhGrL5C79JaO5)

### Rule Parameters

| Parameter                                                    | Description                                                |
| ------------------------------------------------------------ | ---------------------------------------------------------- |
| Please select other local field it cannot be a duplicate of: | The other field in your bloc where the value cannot match. |