Go to the Communication layout and ensure the correct presentation is selected.
Click on the synchronize button next to the presentation title:
Select the BIM Track server from the list and then the project.
Select Download New/Updates to retrieve modifications and new issues from BIM Track.
Select Upload New/Updates to send modifications and new issues to BIM Track.
In Value Conversion ensure that all SMC values are mapped to a BCF Server (BIM Track) values.
See table below for direct conversions: