# ee.data.newTaskId

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Generates an "unsubmitted" ID for a long-running task.

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Before tasks are submitted, they may be assigned IDs to track them. The server ensures that the same ID cannot be reused. These IDs have a UUID format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.

Tasks that are running on the server have a ID without hyphens. This is returned by ee.data.startProcessing and other batch methods.

Returns an array containing generated ID strings, or null if a callback is specified.

| Usage | Returns |
|---|---|
| `ee.data.newTaskId(*count*, *callback*)` | List\[String\] |

| Argument | Type | Details |
|---|---|---|
| `count` | Number, optional | The number of IDs to generate, one by default. |
| `callback` | Function, optional | An optional callback. If not supplied, the call is made synchronously. |