The .fit workout generated by a tool I made, keeps getting rejected by the Garmin Connect website

Hi, I'm making a tool to generate .fit files and then upload them to the Garmin Connect website, but the files keep getting rejected, I don't know what else I can try, the message is always the following:

'One of your files was not accepted by the system. Please contact Support for assistance.'

I'll upload a file with a simple 100m warm up + 100m run

Could someone help me figure out what's wrong with the file?

Here's the file in case anyone could help: static-assets-manager.s3.us-east-1.amazonaws.com/workout_20251120_test_06e23ad229.fit

Thanks in advance!

Top Replies

phoglund_ 22 hours ago +1

Open the file in fitfileviewer.com and see if this is what you have encoded. Your file looks not finished.

All Replies

0 Ben FIT 22 hours ago

You can manually import FIT Activity files into Connect. You can not manually import FIT Workout files into Connect.

0 phoglund_ 22 hours ago

Open the file in fitfileviewer.com and see if this is what you have encoded. Your file looks not finished.

0 Mariano B. 16 hours ago in reply to Ben FIT

What's the difference?

Can I simply change the type to workout and it will work?

Or is not possible to import a simple 2-step running activity to Garmin Connect? Is the only way, manually from the app?

0 Mariano B. 16 hours ago in reply to phoglund_

What is it lacking?

I do not know what else to add, that's what I'm asking. I simplified it to a 2-step training workout to try

0 phoglund_ 13 hours ago in reply to Mariano B.

It doesn't really matter. As Ben says, there is no workout import function in gc.

You can copy it to the newfiles folder on the device to see if the device accept it.