How to activate steps count and sync steps data from Suunto fitness watch to Apple health

I chose to use data from Sunnto Apps as priority data source for steps in apple health apps. I always sync my watch with Suunto Apps, however the steps count in Sunnto Apps is not captured in the Apple health. Then I changed back the setting data source priority to device (iphone) after one month unable to sync data steps from Sunnto Apps. What happened now is that no steps count were captured from the iphone too. So my questions are;

1) how to reactivate step count in iphone

2) How to sync data from Suunto Apps and sunnto fitness watch (mine is Suunto 9) to apple health.

Thank you