How does my Apple Watch connect with Achievement?
While we do not currently support integration with the Activity app, you can connect your Apple Watch to Apple Health and Achievement can fetch your data from the Health app.
To do so, please open your Apple Health app, go to sources, and ensure that your Apple Watch is one of the devices connected to your Health app. Here is a link to Apple's Support article with more information about manually syncing data and connecting.
What can I do to ensure my Apple Watch activity syncs with Achievement?
To ensure your activities sync with Achievement as accurately and quickly as possible, we ask that you sync your Apple Watch to Apple Health once a day and open the Achievement app. Doing this will help ensure that you earn points for all your activities. We will be unable to award points for activities that are over 2 weeks old and have not yet been synced with Achievement.
Also, check that both your mobile device and Apple Health app have the latest updates. If you continue to face problems syncing your Apple Health activity data, please send us more information here with screenshots of your missing Apple Health activities (if possible) and we can look further into the issue.