Multisport

biulex Can you walk through step by step how you are creating the workout in the Connect app/web?

Sure. I'll gladly explain.
The video below shows the mode that doesn't work (I used random values and exercises for demonstration purposes only):

The only mode that worked was by creating a simple workout directly on the watch itself. Adding a walk, a strength workout, and another walk. But this way, I can't add the rests and the exercises I need to do on the day.

P.S: I just tested it and no multisport workout can be sent to my watch via Garmin Connect (app or web). I set it up in several different ways and none of them show my watch as compatible.

biulex Where does it say that your device is not compatible? Does the workout never show on the watch or is it a pop up that you see on the web/app?

Garmin - CF said:

Where does it say that your device is not compatible?

Here:

https://support.garmin.com/en-US/?faq=lLvhWrmlMv0vGmyGpWjOX6

The 265 is not on the compatibility list for multisport workouts.

I see the same thing with garmin connect on the web with setting up a multisport activity with my 965.  Its very strange to have this limitation as I used to create run/bike/run activities for my Fenix 3 a few years.ago and I would imagine that the 965 & 265 are much more capable watches.

It makes even less sense when we realize that we can set up multi-sport workouts directly on the watch (we just can't add the exact details we want). On the watch, I can set up a walk/strength training/walk sequence, but I can't include the specific details (like I showed in the video).

The pop-up that appears at the end of every upload attempt is the same for any multi-sport activity. I thought it was just mine in particular, but any of them that I create and try to upload bring up the same pop-up from the video saying I don't have wearables compatible with the feature (even though I can set them up directly on the watch, just without as many details).

Thanks! I had no idea my watch wasn't compatible. I checked the specs on the website, and under multi-sport, it only lists the 'Triathlon' category.

https://www.garmin.com/en-US/p/886785/#specs

It's extremely weird, considering I can set up multi-sport workouts directly on the watch itself.

Edit: I took the opportunity to check the specs for the 970 (which is among the ones listed as supporting multiple activities on the page you sent), and it doesn't include custom multi-sport. Only the ones listed. I wonder if it's impossible to send a custom multi-sport workout to the watch?

Garmin Forerunner 970 | Running Smartwatch with GPS