---
updatedAt: 2025-11-06T21:52:18.000Z
agentTools:
  projectIndex: https://docs.split.io/llms.txt
---

# Error Codes

We follow standard REST API Error codes to indicate what could be wrong.

* **HTTP 400**: Bad Request.
* **HTTP 401**: Invalid Admin API Key.
* **HTTP 402**: Payment Required.
* **HTTP 403**: Role is insufficient. Example: The Admin API key has `view` access and is trying to `edit`.
* **HTTP 404**: The resource does not exists or the Admin API key has no access. For example, the role does not have `view` or `edit` permissions on the resource.
* **HTTP 409**: Conflict. For example, the resource already exists.
* **HTTP 429**: Rate limited. [Rate Limiting](https://docs.split.io/reference/rate-limiting) for more info.