Uploading Historical Polar Data

Bug Reports
21

Check this first

22

I don’t see a solution to this problem there. Isn’t this just about that Intervals can’t fetch new activities from Polar? New activities get synced without problems, I just can’t import my past activities form before the intervals account creation.

23

That wasn’t clear to me. Sorry.

24

I have also tried to pull the last 3 months of data, so some metrics are correct. However, it seems that both the Import All Data, and pulling of Old Data, is not working. Only the current month seems to work.

I also checked when the import from March to June, and still no data in there, regardless of Polar Web Service showing them.

25

Hello David,

I’m experiencing what appears to be the same issue reported in this thread.

Environment

  • Polar Pacer Pro (new device)
  • Polar Flow account connected successfully to Intervals.icu
  • Automatic synchronization works correctly: every new activity recorded with the watch is imported into Intervals without any issues.

Problem

The historical import always finishes with the email:

Polar data import completed
0 activities created

No errors are shown in the web interface.

What I have tested

  • Requested a full data export from Polar.
  • Downloaded the export ZIP from Polar.
  • Uploaded the ZIP to Dropbox.
  • Used a direct download URL (dl=1) in Settings → Polar → Import All Polar Data.
  • Verified that the URL downloads the ZIP immediately in a private browser window.
  • The import completes successfully, but always reports 0 activities created.

Export contents

The ZIP is valid and contains multiple JSON files, including:

  • activity-*.json
  • sleep_result*.json
  • sleep_score*.json
  • sleep_wake*.json
  • nightly_recovery*.json

This export contains approximately the last 10 days of data from my new Polar Pacer Pro.

Since live synchronization works correctly, it seems the Polar connection is fine. The issue only affects the historical JSON import.

If it helps, I’d be happy to provide the export ZIP (or a reduced ZIP containing only one activity) for debugging.

Thank you for your work on Intervals.icu!

26

Hello David, started using intervals.icu last weekend. And tried to upload my historical data from polar. Same situation here. The zip-file contains json-files back to 2014 from Polar V800 and Vantage V1 and V3. The finishing mail tells me 0 activities imported. Seems to be absolutely the same issue as already by jcaneiro few days ago. Thank you for supporting…

27

I’m unable to import data from my Polar account. I followed the instructions and created a link. Although the file linked is full, the email confirming the process completion says: “Polar data import complete.Intervals.icu has finished importing your Polar history. 0 activities created”.

28

Was there another change in file formats so that the import doesn’t work anymore? @david

29

Yes Polar changed the format, we have updated the importer. Sorry for the delay @jcaneiro

30

I provided the link from the same source; all activities have been imported. Polar users, you can try again. Thanks @david