Check-In and Online Tee Sheets Not Synced Up
Possible Solutions:
1. Refresh the POS Tee Sheet by going to Admin > Tee Sheet > Refresh Tee Sheet
2. In Course Settings, the course may have the "Days Available" setting set to 0. This causes the tee sheet to only show the current day and only a few tee times, not the entire day. This can be changed by going to Administration > Course Settings > Pro Shop: Tee Sheet