[Training Load] Missing Training Load for Manually Imported MyWhoosh Activities

Description

Activities recorded on MyWhoosh and manually imported into Garmin Connect as .fit files fail to generate Training Load (and subsequently do not contribute to Training Status or Recovery Time). This occurs even when the file contains valid Power and Heart Rate data.

Preconditions

User has a Garmin device compatible with Training Load (e.g., Forerunner, Fenix, Edge).
Activity recorded with both a Power Meter and a Heart Rate strap.

Steps to Reproduce

Record a cycling session in the MyWhoosh application.
Export the resulting .fit file (directly from MyWhoosh or via Strava).
Log into Garmin Connect Web and use the "Import Data" function to upload the file.
Open the activity details and check the "Stats" or "Training Effect" tabs.

Expected Results

Garmin Connect should process the Power and HR data to calculate Training Load and Training Effect, similar to how it handles native Garmin recordings or authorized Zwift API imports.

Actual Results

The activity appears with maps, power graphs, and heart rate data.
Training Load is 0 or completely missing.
The activity does not contribute to the "Training Status" widget.

Workaround

If the .fit file is edited using a tool (like FitFileTools) to change the Manufacturer field to "Garmin", Garmin Connect correctly calculates the Training Load upon re-upload.

Note: Garmin currently allows Zwift activities to calculate load via a specific cloud-to-cloud integration. This bug highlights a lack of parity for other third-party files that contain identical data streams (Power + HR).

0 flowstate 13 hours ago

mlodycomar said:
This bug highlights a lack of parity for other third-party files that contain identical data streams (Power + HR).

I understand your frustration, but I'm fairly sure it's not a bug, but it's by design. Garmin doesn't want to calculate metrics such as Training Load for activities which weren't produced by Garmin devices or certain partners like Zwift, as you noted.

This is important is that it means Garmin is unlikely to fulfill your request, unless the reasons behind the deliberate decision change.

While I think it's good to post here for visibility, the official place for this kind of request is:

https://www.garmin.com/en-US/forms/ideas/

0 mlodycomar 5 hours ago in reply to flowstate

You probably didn't read the whole post.

The note at the bottom says, "Garmin currently allows Zwift activities to calculate load via a specific cloud-to-cloud integration."

So, for Zwift activities, it works fine!

0 trux 3 hours ago in reply to mlodycomar

mlodycomar said:
So, for Zwift activities, it works fine!

That's exactly what flowstate wrote:

flowstate said:
Garmin doesn't want to calculate metrics such as Training Load for activities which weren't produced by Garmin devices or certain partners like Zwift

In other words, the 3rd party has to become certified by Garmin in order to get their data processed. You can find the full list of supported platforms at When Will My 3rd Party Activities Show Garmin Training Metrics? | Garmin Customer Support

TrainerRoad, Wahoo, SYSTM, Zwift, Concept2, or Rouvy

Please note that you have to sync your Garmin Primary Wearable Device twice, after importing the file, similarly as when using a secondary device:

What is Unified Training Status? | Garmin Customer Support

0 mlodycomar 23 minutes ago in reply to trux

Ah, stupi me :)

Thanks for sharing the links.

Considering the indoor cycling season is coming to an end, I hope Garmin and MyWhoosh become partners next year.