Messages from REST resources are propagated from the resource instance to the response.
The following HTTP response codes are implemented by the REST API.
| HTTP code | Cause |
|---|---|
| 200 | Success. |
| 201 | Success. The response contains a link. |
| 304 | Success. The data is retrieved from the cache. |
| 400 | The request cannot be received because of an invalid URI, for example. |
| 401 | An authorization violation occurred because of the configuration. |
| 403 | An authorization violation occurred because the resource is blocked by a mxe.rest.resourcetype.blockaccess system property. |
| 404 | The resource cannot be found or an invalid resource type was provided. |
| 405 | The HTTP method cannot be used for the resource. For example, you cannot use the DELETE method on a business object set. |
| 406 | The requested representation is not supported. |
| 412 | The resource is being updated by another user. |
| 500 | All other errors. |
The messages support the languages that are supported by Tivoli®'s process automation engine.