Can’t add my son's new Ace 3 to my existing account

[Tan0976]

When I click on add device it takes me to create family account then I click on it and it come up with unknown error. I have read that you can creat family account on the app but I can not find it. I have clicked in my profile. How do you know if you have a family account or not? 
thanks I can’t work it out. I added my daughters a couple of years ago and no problem 

Moderator edit: subject for clarity 

[DramaQueenDiva]

Hi @Tan0976,

You need to set it up like you would if the tracker was your own by going to your Account Settings and then "Set Up A New Device".  Select the Ace 3 and they should walk you through the entire process from there.

[LiliyaFitbit]

Welcome to the Fitbit Community, @Tan0976. It's nice to see you around and thank you for your help, @DramaQueenDiva.

@Tan0976 Thanks for the details shared in your post and for already trying to resolve the issue. I recommend doing the following:

1. Log out from the Fitbit app.
2. Verify if the Fitbit app is updated to the latest version. For instructions, see this help article.
3. Force quit the Fitbit app.
4. Reboot your phone.
5. Open the Fitbit app and log back in to your account.
6. Follow the steps from this help article to create a Family account and set up the tracker: How do I set up Fitbit Ace devices?

Additionally, I recommend checking if your own Fitbit device is updated to the latest version as updates come with new features and bug fixes: How do I update my Fitbit device?

Hope this helps!