Create a Classification

Create a new classification for organizing tags

POST /v1/classifications

POST /v1/classifications

Python

from metadata.sdk import configure
from metadata.sdk.entities import Classifications
from metadata.generated.schema.api.classification.createClassification import CreateClassificationRequest

configure(
    host="https://your-company.open-metadata.org/api",
    jwt_token="your-jwt-token"
)

request = CreateClassificationRequest(
    name="Certification",
    description="Certifying Data Asset will provide the users with a clear idea of...",
    mutuallyExclusive=True
)

classification = Classifications.create(request)
print(f"Created: {classification.fullyQualifiedName}")

Response

{
  "id": "06d90883-6be9-4f7e-9475-753f10a95e94",
  "name": "Certification",
  "fullyQualifiedName": "Certification",
  "description": "Certifying Data Asset will provide the users with a clear idea of...",
  "version": 0.1,
  "updatedAt": 1769982619610,
  "updatedBy": "admin",
  "deleted": false,
  "owners": [],
  "provider": "system",
  "mutuallyExclusive": true
}

Create a Classification

Create a new classification for organizing tags into categories.

Body Parameters

name · string · required

Name of the classification. Must be unique.

displayName · string

Human-readable display name for the classification.

description · string

Description of the classification in Markdown format.

mutuallyExclusive · boolean · default: "false"

If true, only one tag from this classification can be applied to an entity at a time.

owners · array

Array of owner references (users or teams) to assign to the classification.

Show properties

id · string

UUID of the owner entity.

type · string

Type of owner entity (e.g., user, team).

name · string

Name of the owner entity.

provider · string

Provider of the classification: user (custom) or system (built-in).

POST /v1/classifications

Python

from metadata.sdk import configure
from metadata.sdk.entities import Classifications
from metadata.generated.schema.api.classification.createClassification import CreateClassificationRequest

configure(
    host="https://your-company.open-metadata.org/api",
    jwt_token="your-jwt-token"
)

request = CreateClassificationRequest(
    name="Certification",
    description="Certifying Data Asset will provide the users with a clear idea of...",
    mutuallyExclusive=True
)

classification = Classifications.create(request)
print(f"Created: {classification.fullyQualifiedName}")

Response

{
  "id": "06d90883-6be9-4f7e-9475-753f10a95e94",
  "name": "Certification",
  "fullyQualifiedName": "Certification",
  "description": "Certifying Data Asset will provide the users with a clear idea of...",
  "version": 0.1,
  "updatedAt": 1769982619610,
  "updatedBy": "admin",
  "deleted": false,
  "owners": [],
  "provider": "system",
  "mutuallyExclusive": true
}

---

Returns

Returns the created classification object with all specified properties and system-generated fields.

Response

id · string

Unique identifier for the classification (UUID format).

name · string

Classification name.

fullyQualifiedName · string

Fully qualified name of the classification.

displayName · string

Human-readable display name.

description · string

Description of the classification in Markdown format.

mutuallyExclusive · boolean

Whether tags in this classification are mutually exclusive.

provider · string

Provider of the classification: user or system.

owners · array

List of owners assigned to the classification.

version · number

Version number for the entity (starts at 0.1).

---

Create or Update (PUT)

Use PUT /v1/classifications instead of POST to perform an upsert. If a classification with the same fullyQualifiedName already exists, it will be updated; otherwise, a new classification is created. The request body is the same as POST.

curl -X PUT "{base_url}/api/v1/classifications" \
  -H "Authorization: Bearer {access_token}" \
  -H "Content-Type: application/json" \
  -d '{ ... same body as POST ... }'

PUT will not return a 409 conflict error if the entity already exists — it will update the existing entity instead.

---

Error Handling

Code	Error Type	Description
400	BAD_REQUEST	Invalid request body or missing required fields
401	UNAUTHORIZED	Invalid or missing authentication token
403	FORBIDDEN	User lacks permission to create classifications
409	ENTITY_ALREADY_EXISTS	Classification with same name already exists (POST only)