If you are using the Assembly connector with SIMS and are missing cover/closures in SchoolBooking, it is most likely due to incorrect permissions for the SIMS user in the Assembly connector (Specifically 'Cover Manager').
Checking the permissions
Now Open the SIMS.net client and login as a user with admin access. In SIMS go to Focus – System Manager – Manage Users, and search for the user (from above) and open the details (when searching, make sure to change Role to
Go to Section 3. Groups.
Assembly needs the following permissions. Some of these you will already have for this user
Click Add on the groups section:
Once the user has been placed in the relevant groups, click Save to complete the process.
The next sync should then provide the cover diary for SIMS (cover & closures)