# Social Security Number

The `SSN` field only accepts correctly formatted social security numbers of the form `xxx-xx-xxxx`, where x is a digit.

A badly formatted entry will trigger a validation error on submission and require the user to fix the entry.

![](/files/PgbSIRooKl9liM2KWRZk)

### For Developers <a href="#example" id="example"></a>

The Feathery SDK and API reference social security number fields with `type` equal to `ssn`. The submitted value is a `string`.


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