---
updatedAt: 2026-09-29T18:07:18.000Z
agentTools:
  projectIndex: https://docs.zerohash.com/llms.txt
---

# Reject (35=3)

Rejects for FIX on the zerohash CLOB.

A session level reject message sent when the FIX session can't process a message.

| Tag | Field Name          | Required | Note                                                      |
| --- | ------------------- | -------- | --------------------------------------------------------- |
|     | StandardHeader      | Yes      |                                                           |
| 45  | RefSeqNum           | Yes      | The MsgSeqNum of the referenced message that was rejected |
| 371 | RefTagID            | Yes      | The tag number of the FIX field referenced in the reject  |
| 372 | RegMsgType          | Yes      | The MsgType of the FIX message referenced in the reject   |
| 373 | SessionRejectReason | Yes      | A code to quickly identify common reasons for a reject    |
| 58  | Text                | Yes      | A message explaining why the message was rejected         |
| 10  | StandardTrailer     | Yes      |                                                           |