I randomly checked and I was able to join skip ahead

If you're in preview alpha or alpha skip ahead, search for Xbox Game Pass Ultimate and you should be able to join.

Unfortunately registration ended a couple of days ago - https://news.xbox.com/en-us/2018/06/29/alpha-skip-ahead-registrations-closed/

If that is case then..... they shouldn't be sending out messages inviting you to join. Christ, I am starting to feel a bit pee'vd about the whole Microsoft experience just now. Over the Xbox console years.... from day 1, its been:

• 1st your an Ambassador
• Then you get kicked
• then its a stupid 1 day ban
• Then your Insider
• Promoted to Alpha Skip ahead program
• Buy the new Xbox1X
• download content to new Xbox1X
• that includes the Insider Program
• But hey.... NO Insider Alpha Skip Ahead

And now the registrations are closed???? WHF?

Ok, I went over the top with the bullets.... Please bare in mind people, that I've just turned 46 and now fall into the category of grumpy bugg** .

Hi

Unfortunately once the Alpha Skip ahead tier reached capacity and they had to stop accepting additional new members. When the invites were sent out there would have been places available in the Alpha Skip ahead group however once these
places filled up no additional members (even with invites) could join at this group.

https://news.xbox.com/en-us/2018/06/29/alpha-skip-ahead-registrations-closed/

Unfortunately registration ended a couple of days ago - https://news.xbox.com/en-us/2018/06/29/alpha-skip-ahead-registrations-closed/

Unfortunately registration ended a couple of days ago - https://news.xbox.com/en-us/2018/06/29/alpha-skip-ahead-registrations-closed/

oh well better luck next time