> 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-be-exactly-x-number-of-characters.md).

# Must be exactly X number of characters

This rule is used to determine the character length, the rule fails if the character length is not equal to the required amount set.

![](https://1186088597-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MSr2uF2m-DtSpCxknCK%2F-Ma4Kkfvff4rZVah-KTP%2F-Ma4L6-QO2SIXLR7U-TR%2Fimage.png?alt=media\&token=da481921-5aac-4202-98aa-f58201d01251)

### Rule Parameters

| Parameter            | Description                                                                                              |
| -------------------- | -------------------------------------------------------------------------------------------------------- |
| Number of Characters | The number of characters it must equal, this must be a numeric value for the rule to function correctly. |