[Quickfix-developers] Out-of-order sequence numbers

[Joerg T. <Joe...@we...>]

Hi all,

in our QF 1.5.0 application I noticed the following scenario:

- Our application (acceptor) was sending unsolicited messages
   (ExecutionReports) to the counterparty

- The counterparty requested a ResendRequest FROM: nnn TO: 0

- Our application fulfilled the ResendRequest, but at one point near
   the end of the resent messages unsolicited messages with newer
   sequence numbers got mixed with the normal flow

Is that compliant with the FIX spec or may this be a bug in QF?

Cheers, J=F6rg