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# AddFaceMetadata

Adds custom metadata (a key-value pair) to a face.

Type: synchronous

Parameter | Description | Required
--- | --- | ---
`database` | The name of the database that contains the face. | Yes
`identifier` | The identifier of the face that you want to add metadata to. | Yes
`key` | The key to add (maximum 254 bytes). | Yes
`value` | The value to add (maximum 254 bytes). | Yes

## Example

The following example adds metadata to a face:

    /action=AddFaceMetadata&database=politicians
                           &identifier=6600dc0f9dd72d0cb55589e8f1d28b62
                           &key=FullName
                           &value=John%20Smith

## Response

    <autnresponse>
      <action>ADDFACEMETADATA</action>
      <response>SUCCESS</response>
      <responsedata></responsedata>
    </autnresponse>

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