# 错误代码

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| 错误代码 | 错误信息                                     | 错误说明                         |
| ---- | ---------------------------------------- | ---------------------------- |
| E001 | not found this produce                   | 标的物产品不存在，需要检查code是否正确或联系客户增加 |
| E002 | auth failed                              | 授权失败                         |
| E003 | exceeding the maximum subscription limit | 超出最大订阅产品数量，需要联系客服或者升级套餐      |


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://doc.itick.org/start/cuo-wu-dai-ma.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.