Differences

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--- developers:fixapi:reject [2025/09/12 01:16] – removed - external edit (Unknown date) 127.0.0.1
+++ developers:fixapi:reject [2025/09/12 02:24] (current) – chad
@@ Line 1: / Line 1: @@
+====== REJECT [35=3] ======
+The Reject message indicates FIX session rule violations.
+===== Rejection Reasons =====
+^ Code ^ Description ^
+| 0 | Invalid tag number |
+| 1 | Required tag missing |
+| 2 | Tag not defined for message type |
+| 3 | Undefined tag |
+| 4 | Tag without value |
+| 5 | Value out of range |
+| 6 | Incorrect data format |
+| 9 | CompID problem |
+| 10 | SendingTime accuracy problem |
+| 11 | Invalid MsgType |
+| 13 | Duplicate tag |
+| 14 | Tag out of order |
+| 15 | Repeating group out of order |
+| 16 | Incorrect NumInGroup count |
+| 17 | Field delimiter in value |
+| 18 | Invalid/missing trader |
+===== Message Specification =====
+**Message Direction:** T4 → Client
+^ Tag ^ Field Name ^ Type ^ Req'd ^ Description ^
+| | **Message Header** | | Y | MsgType = 3 |
+| 45 | RefSeqNum | Int | Y | Sequence of rejected message |
+| 371 | RefTagID | Int | O | Referenced tag number |
+| 372 | RefMsgType | String | O | Referenced message type |
+| 373 | SessionRejectReason | Int | O | Rejection code (see table) |
+| 58 | Text | String | O | Rejection explanation |
+| | **Message Trailer** | | Y | |
+===== Sample Message =====
+**SendingTime accuracy rejection:**
+<code>
+=FIX.4.2|9=120|35=3|49=T4|56=T4Example|50=T4FIX|52=20120905-21:07:45.472|
+=12|372=F|373=10|58=Sending Time Accuracy problem|10=234|
+</code>
+===== Notes =====
+  * Requires immediate corrective action
+  * May lead to session termination
+  * New session starts with sequence 1