Once you have integrated with Sabre Connect, you will be able to import PNR numbers directly into the Reservations Tab of the Planner page of a Trip.
Click on to the Sabre Import button
You should see your PCC code already in the left box. Add your PNR into the right box and press 'Sync Single PNR'.
You can check the status of your PNR import directly from the same page. If you don't see your PNR reservations imported within 15 seconds, refresh your page and you should see it.