> For the complete documentation index, see [llms.txt](https://teos-docs.coreledger.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teos-docs.coreledger.net/overview/handling-errors/1xxxx-codes.md).

# 1xxxx codes

Error codes `1xxxx` indicate non-business logic related issues with input (auth issues, issues with parsing input data, rate limiting etc.). These errors are mostly 'technical', related to the problems in the TEOS API consumer's code.

## 11001

<table><thead><tr><th width="318.5"></th><th></th></tr></thead><tbody><tr><td>Message</td><td>UserId was not found in provided authentication data</td></tr><tr><td>Description</td><td>user was not authenticated</td></tr><tr><td>What to do</td><td>Check the authentication data</td></tr></tbody></table>

## 12000 / 12001

<table><thead><tr><th width="185.5"></th><th></th></tr></thead><tbody><tr><td>Message</td><td>There were OData validation errors</td></tr><tr><td>Description</td><td>malformed oData request (missing required fields, redundant fields etc.)</td></tr><tr><td>Details</td><td>contains the array of sub-errors, specifying the issue</td></tr><tr><td>What to do</td><td><ul><li>check the correctness of the request body according to oData and the request specs.</li><li>check the <code>details</code> field for additional information</li></ul></td></tr></tbody></table>

## 13000

<table><thead><tr><th width="187.5"></th><th></th></tr></thead><tbody><tr><td>Message</td><td>Too many requests received.</td></tr><tr><td>Description</td><td>Quota exceeded. Maximum allowed: 100 per 1m.</td></tr><tr><td>Details</td><td>contains the details about the current quota, time to wait until requests are allowed again</td></tr><tr><td>What to do</td><td><ul><li>wait until the requests are allowed again</li><li>check why the quota was exceeded</li><li>if you want to change the quota, contact your CL manager</li></ul></td></tr></tbody></table>

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