> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/api/references/catalog-classification-v2/classification-data-migration-process.md).

# Classification Data Migration Process

The classification data migration tool.

## API to start a process of classification data migration.

> Starts a process that migrates existing data classes and classifications to the Unified Data Classification method.

```json
{"openapi":"3.0.3","info":{"title":"Collibra Catalog Classification API","version":"2.0.0-unstable"},"tags":[{"name":"Classification Data Migration Process","description":"The classification data migration tool."}],"servers":[{"url":"/rest/catalogClassification/v2"}],"security":[{"basicAuth":[]},{"jwtAuth":[]}],"components":{"securitySchemes":{"basicAuth":{"description":"The APIs require Basic HTTP authentication.","type":"http","scheme":"basic"},"jwtAuth":{"type":"http","scheme":"bearer","bearerFormat":"JWT","description":"Collibra REST API authentication using JSON Web Token."}},"schemas":{"ClassificationDataMigrationProcessResponse":{"description":"Represents the response returned when data migration process starts.","properties":{"jobId":{"type":"string","description":"The ID of the newly started job or the existing one.","format":"uuid"}}},"StandardErrorResponse":{"type":"object","properties":{"statusCode":{"type":"integer","description":"The HTTP response code."},"titleMessage":{"type":"string"},"helpMessage":{"type":"string"},"userMessage":{"type":"string"},"errorCode":{"type":"string"}}}},"responses":{"InvalidRequest400":{"description":"The request is not valid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/StandardErrorResponse"}}}},"InvalidRequest401":{"description":"The client is not authenticated.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/StandardErrorResponse"}}}},"InvalidRequest403":{"description":"The user lacks the required permissions.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/StandardErrorResponse"}}}},"InvalidRequest404":{"description":"Resource not found.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/StandardErrorResponse"}}}}}},"paths":{"/migrate":{"post":{"summary":"API to start a process of classification data migration.","description":"Starts a process that migrates existing data classes and classifications to the Unified Data Classification method.","operationId":"startClassificationDataMigrationProcess","tags":["Classification Data Migration Process"],"responses":{"202":{"description":"Data migration process started.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ClassificationDataMigrationProcessResponse"}}}},"400":{"$ref":"#/components/responses/InvalidRequest400"},"401":{"$ref":"#/components/responses/InvalidRequest401"},"403":{"$ref":"#/components/responses/InvalidRequest403"},"404":{"$ref":"#/components/responses/InvalidRequest404"}}}}}}
```


---

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