My garmin venu 3s doesnt show heart rate data.

Im super happy with my Garmin venu 3s.

I see that my heart rate data is missing though.

For all periodes, 1 day/1 week/ 1month/ 1 year it says

You have no data for this time period.

any timps on how to check that i have activated this feature?

kinds regards

Bjørn