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# The User Data Format object

### Description

The User Data Format object describes a piece of user data and the validation rules applied to its format.

The [POST Validate the format of User data](/api-reference/user-data-format/validate-user-data-format) endpoint allows you to check that the format of the `CompanyNumber` is correct and retrieve the validation rules applied to it.

The `CompanyNumber` must be in the correct format for Business Legal Users to be KYC/B verified.

### Attributes

### Schema (`ValidateTheFormatOfUserDataResponse`)

```yaml
components:
  schemas:
    ValidateTheFormatOfUserDataResponseCompanyNumber:
      type: object
      properties:
        CompanyNumber:
          type: string
          description: >-
            The registration number of a legal entity, assigned by the relevant
            national authority.
        CountryCode:
          type: string
          description: >-
            Format: Two-letter country code ([ISO 3166-1 alpha-2
            format](/api-reference/overview/data-formats))


            The country of the registration of the legal entity, against which
            the company number format is validated.
        IsValid:
          type: boolean
          description: >-
            Whether the format of the company number is valid for the given
            country.
        ValidationRules:
          type: array
          items:
            type: string
          description: >-
            The validation rules applied to the company number format for the
            given country.
      description: >-
        Information about the registration number of a legal entity. For
        details, see the [Company
        number](/guides/users/verification/company-number) article.
      title: ValidateTheFormatOfUserDataResponseCompanyNumber
    ValidateTheFormatOfUserDataResponse:
      type: object
      properties:
        CompanyNumber:
          $ref: >-
            #/components/schemas/ValidateTheFormatOfUserDataResponseCompanyNumber
          description: >-
            Information about the registration number of a legal entity. For
            details, see the [Company
            number](/guides/users/verification/company-number) article.
      title: ValidateTheFormatOfUserDataResponse
```

### Related resources

#### [Guide](/guides/users/verification/company-number)

Company number

#### [Guide](/guides/users/verification/requirements)

Verification requirements