> For the complete documentation index, see [llms.txt](https://docs.korewireless.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.korewireless.com/errors/83605.md).

# 83605

## Description <a href="#description" id="description"></a>

You can query usage data up to 18 months in the past. The oldest allowed StartTime is 18 months prior to the start of the current UTC day. For example, if the current time is 2021-12-13T5:00:00Z, then you can query usage as far back as 2020-06-13T:00:00:00Z.

## Possible Causes <a href="#possible-causes" id="possible-causes"></a>

This happens if you request Usage Records with a StartTime parameter more than 18 months in the past.

## Possible Solutions <a href="#possible-solutions" id="possible-solutions"></a>

Adjust your StartTime parameter to be at most 18 months in the past.


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

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

```
GET https://docs.korewireless.com/errors/83605.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.