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

# LMS Connector Errors

> HTTP error codes, error response formats, and LMS provider-specific troubleshooting

This guide covers error codes returned by the StackOne API and common LMS provider-specific issues.

***

## HTTP Error Codes

All StackOne API errors follow a consistent response format:

```json theme={null}
{
  "statusCode": 400,
  "message": "Human-readable error message",
  "timestamp": "2024-01-15T10:30:00.000Z",
  "errorCode": "ValidationError",
  "provider_errors": []
}
```

<Accordion title="Error Code Reference">
  | Code    | Name                  | Description                                          |
  | ------- | --------------------- | ---------------------------------------------------- |
  | **400** | Bad Request           | Invalid request parameters or malformed request body |
  | **401** | Unauthorized          | Missing or invalid API key, or expired credentials   |
  | **403** | Forbidden             | Valid credentials but insufficient permissions       |
  | **404** | Not Found             | Resource does not exist or was deleted               |
  | **408** | Request Timeout       | Request took too long to complete                    |
  | **409** | Conflict              | Request conflicts with current resource state        |
  | **412** | Precondition Failed   | Linked account belongs to a disabled integration     |
  | **422** | Unprocessable Entity  | Request validation failed                            |
  | **429** | Too Many Requests     | Rate limit exceeded                                  |
  | **500** | Internal Server Error | Unexpected server error                              |
  | **501** | Not Implemented       | Feature not supported for this provider              |
  | **502** | Bad Gateway           | Error from upstream provider                         |
</Accordion>

***

## LMS Provider-Specific Issues

### SAP SuccessFactors

For OCN (Open Content Network) integrations, use the `/unified/lms/content/batch` endpoint due to a rate limit of 1 request per 5 minutes.

<Note>
  The `content_id` field is not required for completion creation.
</Note>

***

## Debugging Tips

1. **Check Request Logs**: View detailed request/response logs in Dashboard → Logs
2. **Inspect `provider_errors`**: The raw provider response is included for 4xx/5xx errors
3. **Use the Playground**: Test actions interactively to isolate issues
4. **Verify Permissions**: Many 403 errors are due to missing provider-side permissions

<Card title="Request Logs" icon="scroll" href="/guides/request-logs">
  View and debug API requests in the dashboard
</Card>