# S01039 {#S01039}

## Error Code {#error_code .section}

S01039

## Error Message {#error_message .section}

`[asyncReplication] Skipped task with <taskId>. The task is invalid or has already been executed. RefId: S01039`

## Probable Causes {#probable_causes .section}

The slave cluster for asynchronous replication reports the task with &lt;taskId&gt; has already been executed and this task is skipped.

In rare cases such as modifying the task execution set, resuming a temporary network transmission issue, or restarting a data node, a task may be repeatedly submitted for execution. The asynchronous replication mechanism automatically deduplicates tasks and reports this error to ensure data accuracy and integrity.

## Solutions {#solutions .section}

No user action is required.

**Parent topic:**[Error Code Reference](../../Troubleshooting/ErrorCode.md)

