A. 1. Check sync settings: Ensure that your Oura ring is syncing properly with the app. Go to Settings > Sync and make sure it is enabled. 2. Re-sync the device: Try manually syncing your Oura ring by going to the app and tapping on the sync button.

B. 3. Review data retention policies: Check if there are any settings related to data retention in the app that may limit how much historical data is stored.