Hello @NaomiDom 

Thanks for posting about this and sorry to hear of the issue.  The first thing I recommend is check to ensure you're signed into your original Strava account on your new phone.  If you accidentally created a new Strava account on your new phone, you won't see your activities syncing into it.

To do this, sign out of Strava on the phone and sign back in, being sure to use the original email address and password you used when you set up your account.  If you know the email address but not the password, you can reset it.

Instructions to reset your password

Let us know if that helps solve the problem.

I have got the same problem. The data is synchronized with Polar Flow but it doesn’t appear on my Strava account since 2-3 weeks.

As of 6-20-24, Strava seems to not be uploading polar calorie estimates.  I've checked to make sure my weight was entered on both platforms.  Reconnected the data sharing agreements on both apps, but when I upload to strava now, it won't carry over the calorie burn.  Not a huge deal, but I just don't want to do it myself manually for every workout I save.  Any advice would be appreciated!

Hi @landcruiser87 

Thanks for reporting this. We're aware of this issue and are currently working on it.  You can subscribe to this post to receive updates.

Sincere apologies for the problem.

Ok great!  Thank you for the update Jane! 

Hello, 

I have a Polar M430 watch that always synced with Strava & Polar Flow on my pc. I biked on August 4th & 5th & noticed that my rides did not sync on Strava however they showed on my Polar Flow. 
I hope you can resolve this for me. 
Thank you!