Unable to sign-up a new developer M365 sandbox -

Question

Hi

I have not been able to finish sign-up process for a new M365 developer sandbox subscription. When I reach the "add phone number for security" part, regardless of which phone number I have entered ( have tried with my work / personal / brand new pre-paid mobile number) , I always end up with the following error message:

"We can't continue with the signup process for the following reason:

Your phone number did not pass security checks. MS-CorrelationId: 00000000-095e-4319-8092-404f24faea94 Code: 40351" I have been receiving the same response for some time now (over a period of two months) without any change in the behaviour of the sign-up process. Could someone provide assistance with this? BR, Jippe

Answer 1

Hi @Jippe ZZZ , 

Welcome to Microsoft Q&A! 

The tag “Visual Studio” is related to general questions for Visual Studio product.

Your issue is related to Microsoft 365, please report it in Microsoft Support Community. 

Thanks for your understanding! 

Sincerely,

Anna

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