修复消息：登录时“未为此消息类型定义标签”

Question

Below is the output snippet I get while I try to logon to Cfh I am following this doument

8=FIX.4.4|9=119|35=0|34=2|49=xxxxxxx|52=20200220-00:14:00.478|56=CfhDemoxxxxx|108=30|141=Y|553=xxxxxxx|554=xxxxxx|10=227|
8=FIX.4.4|9=138|35=3|34=2|49=CfhDemoxxxxx|52=20200220-00:14:00.564|56=xxxxxxx|45=2|58=Tag not defined for this message type|371=108|372=0|373=2|10=154|
8=FIX.4.4|9=113|35=1|34=3|49=CfhDemoxxxxx|52=20200220-00:14:06.564|56=xxxxxxxx|112=2439c450-1914-42ad-83c6-ad4b5ed17501|10=146|
8=FIX.4.4|9=160|35=0|34=3|49=xxxxxxx|52=20200220-00:14:06.740|56=CfhDemoxxxx|108=30|112=2439c450-1914-42ad-83c6-ad4b5ed17501|141=Y|553=xxxxxxxx|554=xxxxxxx|10=135|
8=FIX.4.4|9=138|35=3|34=4|49=CfhDemoxxxx|52=20200220-00:14:06.826|56=xxxxxxx|45=3|58=Tag not defined for this message type|371=108|372=0|373=2|10=164|
8=FIX.4.4|9=119|35=5|34=4|49=xxxxxxx|52=20200220-00:14:23.476|56=CfhDemoxxxxx|108=30|141=Y|553=xxxxxxx|554=xxxxxxB|10=237|
8=FIX.4.4|9=138|35=3|34=5|49=CfhDemoxxxxx|52=20200220-00:14:23.563|56=xxxxxxx|45=4|58=Tag not defined for this message type|371=108|372=5|373=2|10=168|

Answer 1

It took me a while to see it (so you can ignore my comment) but that was mainly due to bad formatting. Please paste your FIX messages with a visible separator between the fields, eg a pipe |

You are sending a Heartbeat message ( 35=0 ) with field 108/HeartBtInt . This tag is only allowed on a Logon message ( 35=A ).

This is also explained in the Reject message ( 35=3 ) that you get:

8=FIX.4.4|9=138|35=3|34=2|49=CfhDemoxxxxx|52=20200220-00:14:00.564|56=xxxxxxx|45=2|58=Tag not defined for this message type|371=108|372=0|373=2|10=154|

...
58      Text        Tag not defined for this message type   
371     RefTagID    108     
372     RefMsgType  0
...

So 371/RefTagID tells you that tag 108 is not defined for the 372/RefMsgType of 0 .

Edit: in general it seems you are putting wrong tags on every message. You also put tags 141 , 553 and 554 on a HeartBeat but these belong to a Logon message also.