> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rhinestone.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# sendUserOperation

> Prepare, sign, and submit a user operation in a single call.

Method on an account instance returned by [`createAccount`](/sdk-reference/rhinestone-sdk/create-account).

## Usage

```ts theme={null}
const userOperation = await account.sendUserOperation(transaction)
```

## Parameters

<ParamField path="transaction" type="UserOperationTransaction" required>
  User operation to send
</ParamField>

## Returns

<ResponseField name="userOperation" type="UserOperationResult">
  The user operation result (a UserOp hash)
</ResponseField>

## See also

* [waitForExecution](/sdk-reference/account/execution/wait-for-execution) to wait for the user operation to execute onchain