Does Quickfix automatically fill in header, body and trailer fields?

Question

When want to send a Quickfix message (Logon, for example) do I need to go and fill in every field manually, or will data from the Settings file get automatically added as necessary.

Currently, I can connect but not log into my broker's FIX server and I'm having trouble getting any idea of what I'm doing wrong.

Answer 1

QuickFix will connect and send a Logon automatically when you invoke start from your initiator. As for not being able to get through to your broker, ask them to confirm that they can see your Logon request. Also, make sure they don't require extra fields, like a password or a SubID.