> 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/must-have-matching-equivalent-data-in-another-form.md).

# Must have matching equivalent data in another form

This rule is used to verify multiple pieces of data in another bloc. It attempts to match all the local fields with the fields that must be matched, if any do not match the rule fails.

![](/files/-Ma4uyd-BX6ovlracvDx)

### Rule Parameters

| Parameter       | Description                                                                                                         |
| --------------- | ------------------------------------------------------------------------------------------------------------------- |
| Bloc to check   | This is the Bloc that is looked for that contains the matched data.                                                 |
| Fields to match | This is the combinations of local fields with the remote fields in the other bloc. You can add as many as you like. |


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