A free program from Microsoft that provides developers with the tools, resources, and sandbox environments needed to build solutions for Microsoft 365.
According to Welcome to the Microsoft 365 Developer Program | Microsoft Learn, eligibility for the sandbox subscription is current limited and requires the following options:
- Active Visual Studio Professional or Enterprise subscription holders
- ISV Success Program Members
- AI Cloud Partner Program Participants
- Premier or Unified Support Plan Members
If you’re using a personal account, please note that it must be linked to an active Visual Studio Professional/Enterprise subscription or be part of one of the supported partner programs listed above.
As a forum moderator, we do not have access to the internal systems required to investigate individual account issues due to privacy, security constraints and we also do not have the ability to grant or activate licenses manually. However, we recommend reviewing the Microsoft 365 Developer Program FAQ, which provides detailed eligibility criteria and helpful guidance.
If you believe you're eligible but still encountering issues, you can submit a support ticket through the Developer Program | Microsoft 365 Dev Center > Support for further assistance.
Please note that this portal is a paid ticket and access is subject to certain conditions, you can read more at: Services Hub sign in FAQs | Microsoft Learn.
I hope this information is helpful and points you toward the next steps.
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