> For the complete documentation index, see [llms.txt](https://docs.coinlocally.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coinlocally.com/error.md).
# Error
All API errors follow a standard JSON format, consisting of an **error code** and a **message**:
```json
jsonCopyEdit{
"code": -1121,
"msg": "Invalid symbol."
}
```
> ⚠️ **Note**: Error codes are standardized, but messages may vary slightly depending on the context.
***
### 🔧 General Server & Network Errors
| Code | Description |
| --------- | -------------------------------------------------------------------------------------------------- |
| **-1000** | Unknown error occurred while processing the request. |
| **-1001** | Internal server error. Please retry your request. |
| **-1002** | Unauthorized: API Key not provided or invalid. Include your API Key in all requests. |
| **-1003** | Request rate too high. You've exceeded the limit. |
| **-1004** | Unauthorized access. User not found or not associated with a company. |
| **-1006** | Unexpected response from internal system. Execution status unknown. Contact support. |
| **-1007** | Backend server timeout. Status of request is unknown. |
| **-1014** | Unsupported order combination. |
| **-1015** | Too many new orders placed in a short time. |
| **-1016** | This service is no longer available. |
| **-1017** | Missing or incorrect `Content-Type`. Ensure all headers include: `Content-Type: application/json`. |
| **-1020** | Operation not supported. |
| **-1021** | Timestamp is outside the allowed `recvWindow`. Check time sync with server. |
| **-1022** | Signature is invalid. Ensure the signature string is correctly constructed. |
| **-1023** | Missing timestamp. Add the `X-CH-TS` header to your request. |
| **-1024** | Missing signature. Add the `X-CH-SIGN` header to your request. |
***
### 📝 Request Format & Parameter Errors
| Code | Description |
| --------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| **-1100** | Illegal characters in a parameter. |
| **-1101** | Too many parameters sent to this endpoint. |
| **-1102** | A required parameter was missing, empty, or malformed.
E.g. Mandatory parameter '%s' not sent or malformed.
|
| **-1103** | Unknown parameter included.
Each request must include at least one valid parameter (e.g., timestamp).
|
| **-1104** | Not all parameters were read.
Expected '%s', received '%s'.
|
| **-1105** | Parameter was empty. |
| **-1106** | Parameter sent when not required. |
| **-1111** | Precision exceeds allowed maximum for this asset. |
| **-1112** | No orders currently on the order book for this symbol. |
| **-1116** | Invalid `orderType`. Must be `LIMIT` or `MARKET`. |
| **-1117** | Invalid `side`. Must be `BUY` or `SELL`. |
| **-1118** | `newClientOrderId` is empty. This must be a unique string. |
| **-1121** | Invalid symbol. Check trading pair spelling or availability. |
| **-1136** | Order volume is below the minimum allowed. |
| **-1138** | Order price exceeds the allowed range. |
| **-1139** | This trading pair does not support market orders. |
| **-1145** | This order type cannot be canceled. |
***
### 📈 Trading & Account Errors
| Code | Description |
| --------- | ----------------------------------------------------------------- |
| **-2013** | Order not found. It may have been filled or canceled already. |
| **-2015** | Invalid API Key, IP, or insufficient permissions for this action. |
| **-2016** | Transaction is currently frozen. Contact support. |
| **-2017** | Insufficient balance to place this order. |
***
#### 🔍 Tips for Debugging
* **Always log** the full request: method, endpoint, timestamp, and body.
* **Ensure system clocks are synced** to avoid timestamp-related errors.
* **Verify the signature** format and ordering match the API documentation exactly.
* **Avoid high-frequency bursts** that could trigger rate limit errors.