I am using my company email to pursue my Azure certificate. As this corporate account does not support Microsoft Azure Sandbox, it was linked it to my outlook.com personal account. The sandbox still did not work. So I unlinked it and tried to link to my gmail.com account but got below message:
firstname.lastname@example.org already has a profile registered
Please add another account and try again.
Even linking to my outlook.com account failed with the same above message.
How can I link my corporate account with my gmail.com account to continue setting the sandbox?