Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello Saikumar R! I'm Gunasekar and I'd be happy to help you with your question.
I understand that you are having trouble setting up Microsoft 365 E5 Sandbox Subscription. This error "Your phone number did not pass security checks" appears due to the following reasons.
- If your password is the same as your phone number.
- Use a VPN and make sure it helps.
- Server issues.
Developer program gets started: (Set up a Microsoft 365 developer sandbox subscription)
https://learn.microsoft.com/office/developer-program/microsoft-365-developer-program-get-started
Most users reported the same error and solved the error by changing the Browsers, connecting to a different Wi-Fi network or using a corporate VPN, and using a different device.
To speak with Advocate, you can create a Support ticket to contact Microsoft Business support:
https://docs.microsoft.com/microsoft-365/admin/contact-support-for-business-products
Global Customer Service phone numbers for Business users.
https://support.microsoft.com/help/c0389ade-5640-e588-8b0e-28de8afeb3f2
"This issue was already described in another thread (Use a translator) https://answers.microsoft.com/thread/eceb5cad-839a-404a-bb58-d457d3cf993b where I also responded."
I hope this information helps. If you have any questions, please let me know and I will be happy to help you further.
Best regards,
Gunasekar N