> ## Documentation Index
> Fetch the complete documentation index at: https://pleo-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Errors

> [!NOTE]
>
> 🚧 This page refers to the Legacy API which is deprecated

## Error Handling & Responses

Pleo uses conventional HTTP response codes to indicate the success or failure of an API request. In general: Codes in the 2xx range indicate success. Codes in the 4xx range indicate an error that failed given the information provided (e.g., a required parameter was omitted, a charge failed, etc.). Codes in the 5xx range indicate an error with Pleo's servers (these are rare).

Some 4xx errors that could be handled programmatically - include an error code that briefly explains the error reported.

| Error code | Description of error code |
| :- | :- |
| 200 | All good, everything went as expected! |
| 401 | Unauthorised - No valid Token has been provided |
| 403 | Forbidden - The Token does not have sufficient permission |
| 404 | The requested resource does not exist |
| 500 | Internal server error |


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