A free program from Microsoft that provides developers with the tools, resources, and sandbox environments needed to build solutions for Microsoft 365.
Hi @Anh Hào Ngô
Thank you for reaching out to the Microsoft Q&A Forum.
I understand you are currently blocked from completing your Microsoft 365 Developer Program setup. The core of the problem is that the setup requires SMS verification to an old, inaccessible phone number, even though you have correctly updated the contact information in your primary Microsoft account security settings.
This issue can occur when the Developer Program profile does not immediately sync with changes made to your main Microsoft account. Please reach out to update or remove the phone associated with your Microsoft 365 Developer Program profile Contact Us - Developer Support.
As a forum moderator, I can help guide discussions and share insights based on public documentation and community knowledge. We don’t have access to the detailed system needed to troubleshoot this effectively due to privacy and security constraints. We recommend contacting Microsoft’s support team directly, as they are best equipped to address and resolve this type of issue efficiently.
I hope this information can help you to solve your issue soon.
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