---
title: Error codes
slug: api/error-codes
description: Get to know commonly-encountered error codes and how to troubleshoot them in Marco API.
docTags:
createdAt: 2023-11-29T08:56:15.950Z
---
Refer to the following table for commonly-encountered errors in Marco API and how to troubleshoot them.
| **Code** | **Description** | **Troubleshooting** |
| -------- | ------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 400 | Input Error. Check the request payload for issues. | **Cause:** The request is not formatted properly.
**Solution:** Check your request payload, headers, and parameters for accuracy, and cross-reference with the API Reference. |
| 403 | Access denied. Additional privileges are needed access the requested resource. | **Cause:** The caller does not have authorized access to the resource.
**Solution: **Ensure that your API caller account has admin access. For more information, refer to [Authorization](docId\:l042Z6iLdse7ydW8Y9SiY). |
| 404 | Not Found. The requested resource does not exist. | **Cause:** The resource does not exist.
**Solution: **Check that the resource ID is correct and try again. |
| 429 | Rate Limited. Too many requests. | **Cause:** Too many requests have been sent in a short amount of time.
**Solution:** Use bulk endpoints where possible, and otherwise retry with exponential backoff. |
| 500 | Unexpected error. | **Cause:** The server is experiencing issues.
**Solution:** Retry after a brief moment, and contact Marco Payroll if the issue persists. |