Unable to create Learn Sandbox

[verargulla]

Please help. I have two email addresses linked to my Microsoft account. Whenever I try to create a new sandbox on Learn, I get an error stating the below:

[#2]

Have you added your gmail.com email address as an alias on your outlook.com address?

https://support.microsoft.com/en-us/account-billing/change-the-email-address-or-phone-number-for-you...

See what email addresses are listed on https://account.live.com/names/manage

If you do trying switching the primary email address to the outlook.com email and/or removing the gmail.com address

[#3]

@Julian Sharp , thanks so much for replying.

I see the two email addresses on my account:

The outlook.com email is already the primary. I'm tempted to remove gmail.com but would it have an impact on the certifications linked on my profile? I already had issues having the Credly 'Share' button visible on some of my certifications when I linked my MCIDs.

I've also tried using an InPrivate window in Edge to login but the same issue happened.

[#4]

@verargulla try making the Gmail the primary and then setting the outlook back to primary

Certifications are linked to the account not the email address 

[#5]

I can't even get the button to create a sandbox to appear in the MS-500 course modules. It's just not there on any of the modules.

[#6]

You need to sign in to Microsoft Learn before to see the button for the sandbox

[#7]

https://learn.microsoft.com/en-us/certifications/exams/ms-500

I am signed in, tried Chrome and Firefox on 2 systems, no Sandbox button as described here:

https://learn.microsoft.com/en-us/training/support/faq?pivots=sandbox

The mention of a sandbox being required is not there, nor is even an option for it, yet it keeps linking to the Azure Portal to follow the exercises.

[#8]

I have responded on the other thread