Hi Welcome to soda community

Which accounts do you want to link? Do you mean you want to sync a Facebook and King account? Do you have a King account or do you need to create a King account? Here’s how to create one:

Creating a King account couldn't be easier:

Open the game on your device and tap the Settings button down in the bottom left-hand corner
Tap the orange and yellow King icon
Choose your avatar and nickname
Enter your email address
Choose a password and head on back to the game, it's as simple as that!
Don't forget to save your email and password, because if you don't save your profile you won't be able to recover it in future!

If you want to sync a Facebook and King account, follow these steps:

Are you connected to your game both in Facebook and with a King account?

Go to this page: https://king.com/games
In the top-right corner, click "Log in" (If you are already logged in, it will say "Settings", in which case skip the next two steps)
Log in using your King account username and password
In the top-right corner, click "Settings"
Choose the option "Account", then down at the bottom select "Score and progression sync"
Select "Sync progress" and you will be asked to log in to your Facebook account.
And that's it! Your progress will be synced across both your King and Facebook accounts.

Please note: your progress and Gold Bars will be synced across all accounts and all signed-in devices, but other items like Boosters are stored on your device and are not synced.

Hope this helps

Thank you