Comments captured on the Shop Floor scanning stations will appear on the Shop Floor Time Card lines.
To see these comments in Business Central:
Navigate to “Shop Floor Time Cards”.
Find the time card in question and open it.
Find and select the time card line. Any time card line that has one or more comment will appear in bold.
Click on the Comment button to view the comments.
It is also important to note that in order for Shop Floor users to write anything (including comments) to production related tables, you need to have a full premium Business Central licence or Device Licence for the scanning station.