> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kraken.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Market Data Request Reject

> FIX message used to reject invalid market data requests.

The Market Data Request Reject message is used to reject invalid market data requests.

<Tabs>
  <Tab title="FIX Specification">
    <ParamField path="header" type="" required> MsgType <code>Y</code> </ParamField>

    <ParamField path="262 - MDReqID" type="string" required>
      Refers to the MDReqID of the request.
    </ParamField>

    <ParamField path="58 - Text" type="string">
      Free-format text string explaining the rejection reason.
    </ParamField>

    <ParamField path="trailer" type="" required />
  </Tab>
</Tabs>