{{Quickfixn}} How to prevent rejection of message missing an *optional* field.

[Mike Gatny]

On Fri, Jan 10, 2014 at 6:10 PM, Manuel Lopez <lopez.post at gmail.com> wrote:

> 20140110-22:28:07.376 : 8=FIX.4.4  9=133  35=j  34=171  49=us
> 52=20140110-22:28:07  56=cparty  142=fooloc  45=223  58=Conditionally
> Required Field Missing  372=8  380=5  10=028
>

This question comes up a lot.  The "Conditionally Required Field Missing"
error means that:

1. you tried to do a Get on a field that was not present in the message
2. therefore a FieldNotFound exception was thrown
3. you did not catch the exception
4. therefore quickfix/n handled it for you by sending a reject (35=j)

So: wrap your code that gets conditionally required fields (like LastPx in
Execution Reports) in a try-catch, and handle FieldNotFound.

--
Mike Gatny
Connamara Systems, LLC
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