# Common Errors

Even with careful integration, you may encounter occasional errors while interacting with the Wise API. 

### **Error Codes and Meanings:**

The API utilizes standard HTTP status codes and custom error codes to communicate the nature of the error encountered. Here's a breakdown of some common error codes you might encounter:

* **400 Bad Request:** This indicates a problem with your request formatting, missing required parameters, or invalid data.
* **401 Unauthorized:** Your API credentials are invalid, missing, or have insufficient permissions for the requested action.
* **403 Forbidden:** Your API key may have limited access, or the requested resource may be forbidden for your account.
* **404 Not Found:** The requested resource (user, course, etc.) could not be found on the platform.
* **429 Too Many Requests:** You have exceeded the rate limit for your API key. Reduce your request frequency or wait for the rate limit window to reset.
* **500 Internal Server Error:** An unexpected error occurred on the server side. Retry your request later.