Digital code - entered on PC

Thank you - I found it - had to choose to download it. Sort of assumed it would be automatic.

Make sure you are using the same account that was used to redeem the code on your Xbox, and it should show in your game library.

I have a similar problem ... when I go on my account in the gigantic site can choose to redeem the code for the beta on Xbox One and / or PC, if I select one xbox I was sent to the xbox store on the page to redeem the codes 25 digit code which, however,
I do not have. but if I select the PC the code to enter the store appears automatically (I tried to use the code in the store pc xbox but it always fails)

Is it a 9 digit code or a 25 digit code? 9 digit codes are for microsoftstore.com. You would have to make the purchase there and it gives you the option to add a promo code during checkout. You would have to contact their customer support for issues with
entering the code.

25 digit codes are Xbox codes and would be redeemed to your account before you make a purchase.

It's a 9 digit code. When I go the Microsoft store site and try to purchase it, it brings up the store app from windows 10. There is no place to enter the 9 digit code. only the 25 digit ones

Check any information you received with the code. Typically a 16-digit code would be entered in a different website to then receive the proper 25 digit code.