Importing a flight plan A320neo

[mitch1951]

I have only recently installed MSFS2020, having been happily using FS9 since it came out.  I still fly FS9, but am slowly getting used to MSFS2020.

In FS9 when flying my PMDG 737-800/900, I can either directly input my own flight plan into the FMC, or import one that I created in Simbrief.

In MSFS2020 I can manually enter a flight plan into the FMC, but don't seem to be able to import one that I create in Simbrief. The FMC gives the message "NOT ALLOWED" when I try to enter the flight plan into the company route slot.  Am I doing something wrong, have I missed something, or is this just not possible?

Any help with this would be greatly appreciated.

[tiger1962]

For any MSFS2020 question, YouTube has the answer: https://www.youtube.com/watch?v=Y--qSXEkr0E