I use SimBrief and notice on all occasions the flightplan does not match the MCDU in the Flybywire A320. Maybe I am missing something but find continually having to change to match. Then I get ATC telling me I am of course.

I have Navigraph installed yet it still happens. Not only SID's but even Stars, approaches . 

What am I missing here.

If you want the plan to match P2A, you should import from SimBrief into P2A, get it the way you want it and then export it from P2A to the correct format.  Be sure to turn off "ATC Assigns...." options so that the procedures won't get changed when you file it.

Or export after you File so what you export matches what was filed.

Dave

Thanks for your quick reply. I will give that a go.