# Errors

The Terminal Shipping API is RESTful so we use standard HTTP codes to let your server know if a request was successful or not.

## Error Sample

### Error Codes

* **200 -** Request was successful and action was carried out as expected.
* **400 -** An error occurred while executing request. When a 400 status code is sent, we always include a `message` parameter in the response which provides a description of the error.
* **401 -** Unauthorised request. This status code is sent when an invalid or expired access token is used in a request. See [authentication](https://docs.terminal.africa/tship/authentication) section for a description of how to include access tokens in request.
* **404 -** This status code is sent when an invalid endpoint is accessed. Verify that the endpoint you have is one of the provided endpoints in our reference.
* **500, 501, 502, 503, 504 -** This indicates an error processing the request from TShip, possibly due to server downtime or unavailability. Please [contact](mailto:support@terminal.africa) a member of our support team if you receive this status code.