# OperationResponse

The result type most fields under `mutation { operations { ... } }` return.

| Field | Type | Description |
|-------|------|-------------|
| `success` | `Boolean!` | Whether the operation succeeded |
| `count` | `Int` | Number of affected records, for a mutation that acts on a set or patches fields; `null` otherwise |
| `id` | `Long` | The one row the operation acted on, when there is one: the work queue entry `queueTrain`, `requeueExecution` and `resumeExecution` created, the execution `runTrain` started, the group `updateManifestGroup` patched. `null` otherwise |
| `message` | `String` | Human-readable status message |

## See also

- [Mutations](/docs/sdk-reference/graphql-api/mutations)