> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tesouro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# UnderwritingApplicationFieldValidationErrorCode

> Error codes for field-level validation failures on underwriting applications.

`ENUM`

Error codes for field-level validation failures on underwriting applications.

## Values

<ResponseField name="FIELD_TOO_LONG" type="enum">
  A field value exceeds the maximum allowed length.
</ResponseField>

<ResponseField name="INVALID_BUSINESS_ADDRESS_COUNTRY_CODE" type="enum">
  The business address country code is not a recognized ISO 3166-1 alpha-3 value.
</ResponseField>

<ResponseField name="INVALID_EIN" type="enum">
  The Employer Identification Number (EIN) does not conform to the expected format of XX-XXXXXXX
  (e.g., 12-3456789).
</ResponseField>

<ResponseField name="INVALID_FIELD" type="enum">
  The field value does not meet the required format or constraints.
</ResponseField>

<ResponseField name="INVALID_MCC" type="enum">
  The Merchant Category Code (MCC) is not a recognized value.
</ResponseField>

<ResponseField name="INVALID_SSN" type="enum">
  The Social Security Number (SSN) does not conform to the expected format of XXX-XX-XXXX (e.g.,
  012-34-5678).
</ResponseField>

<ResponseField name="INVALID_TELEPHONE_NUMBER" type="enum">
  The telephone number is invalid. It must be a valid phone number containing only digits, with
  optional dashes, dots, or spaces.
</ResponseField>

<ResponseField name="INVALID_TIN" type="enum">
  The tax identification number (TIN) does not conform to the expected format: XXX-XX-XXXX for
  individuals (SSN/ITIN) or XX-XXXXXXX for businesses (EIN).
</ResponseField>

<ResponseField name="MISSING_FIELD" type="enum">
  A required field was not provided.
</ResponseField>