Sometimes, data synchronization between the Withings App and Health Connect can be disrupted, resulting in your Health Connect data not appearing in the Withings App or vice versa. 

In general, make sure that:

• You wait at least 15 minutes after you have added data. There can sometimes be a delay in the data synchronization.
• You check your web dashboard to make sure that the data has been properly synced with the servers.

If you’re experiencing issues receiving your Health Connect data in the Withings App (or vice versa), perform the following steps:

1. Unlink Health Connect from the Withings app from your phone's Settings > Apps.
2. Uninstall the Withings app.
3. Restart your mobile device.
4. Reinstall and log into the Withings App.
5. Open the Withings app and select the Share tab at the bottom right corner of the screen.
6. Scroll down and tap the Health Connect logo under 'Apps'.
7. You will be prompted to enable syncing with Health Connect.
8. Allow 24 hours for the data to sync and appear in the Withings App.

If you still encounter issues, reach out to Customer Service by clicking the Contact us button at the bottom of the page.