Add classification to file


Adds a classification to a file by specifying the label of the classification to add.

This API can also be called by including the enterprise ID in the URL explicitly, for example /files/:id//enterprise_12345/securityClassification-6VMVochwUWo.



Path Parameters

stringin pathrequired

The unique identifier that represents a file.

The ID for any file can be determined by visiting a file in the web application and copying the ID from the URL. For example, for the URL https://* the file_id is 123.

Request Body


The name of the classification to apply to this file.

To list the available classifications in an enterprise, use the classification API to retrieve the classification template which lists all available classification keys.



Returns the classification template instance that was applied to the file.

application/jsonClient error

Returns an error when the request body is not valid.

  • schema_validation_failed - The request body contains a value for a for a field that either does not exist, or for which the value or type does not match the expected field type. An example might be an unknown option for an enum or multiSelect field.
application/jsonClient error

Returns an error when the file or metadata template was not found.

  • not_found - The file could not be found, or the user does not have access to the file.
  • instance_tuple_not_found - The metadata template was not found.
application/jsonClient error

Returns an error when an instance of this metadata template is already present on the file.

  • tuple_already_exists - An instance of them metadata template already exists on the file.
application/jsonClient error

An unexpected client error.

Add classification to file
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Request Example

curl -i -X POST "" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "Box__Security__Classification__Key": "Sensitive"
var fileId = "0";
var classification = new Dictionary<string, object>
    { "Box_Security_Classification_Key", "Sensitive" }

var classificationData = await client.MetadataManager.SetFileMetadataAsync(fileId, classification, "enterprise", "securityClassification-6VMVochwUWo");
BoxFile file = new BoxFile(api, "id");
Metadata metadata = new Metadata()
metadata.add(Metadata.CLASSIFICATION_KEY, "Sensitive")
classification = {
    'Box__Security__Classification__Key': 'Sensitive',
applied_metadata = client.file(file_id='11111').metadata(scope='enterprise', template='securityClassification-6VMVochwUWo').set(classification)
var classification = {
	Box__Security__Classification__Key: "Sensitive"
client.files.addMetadata('11111', 'enterprise', 'securityClassification-6VMVochwUWo', classification)
	.then(metadata => {
		// the classification applied to the file
TypeScript (Beta)
await client.fileClassifications.addClassificationToFile(, {
  boxSecurityClassificationKey: classification.key,
} satisfies AddClassificationToFileRequestBody);
Python (Beta)
client.file_classifications.add_classification_to_file(, box_security_classification_key=classification.key)
.NET (Beta)
await client.FileClassifications.AddClassificationToFileAsync(fileId: file.Id, requestBody: new AddClassificationToFileRequestBody(boxSecurityClassificationKey: classification.Key)).ConfigureAwait(false)

Response Example

  "$canEdit": true,
  "$parent": "folder_59449484661,",
  "$scope": "enterprise_27335",
  "$template": "securityClassification-6VMVochwUWo",
  "$type": "securityClassification-6VMVochwUWo-fd31537a-0f95-4d86-9f2b-5974a29978f8",
  "$typeVersion": 5,
  "$version": 1,
  "Box__Security__Classification__Key": "Sensitive"