A free program from Microsoft that provides developers with the tools, resources, and sandbox environments needed to build solutions for Microsoft 365.
Hi @Erik Bednařík
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Based on the official documentation, the Microsoft 365 E5 Developer subscription is valid for up to 90 days and is automatically renewed if you remain active in development. The renewal process is handled by Microsoft’s internal systems, which evaluate your development activity to determine eligibility.
Please note that, as moderators, we do not have access to the backend tools used to assess activity or to manually trigger a renewal.
If your tenant has already been marked as expired or inactive, we recommend backing up any important data as soon as possible before the subscription and all data are permanently deleted.
You can refer to this article for more information: Microsoft 365 Developer Program FAQ | Microsoft Learn.
You can delete Profile to remove the old Developer account. This may help release the phone number so you can use it again for a new registration. Please note that it can take some time, usually up to 60 days, before the number becomes available for reuse.
If the steps above do not work, we recommend contacting Microsoft Developer Support for further assistance through the following link: Services Hub.
Please note that Services Hub is intended for paid support tickets and access is subject to certain conditions. You can find more details here Services Hub sign in FAQs | Microsoft Learn.
If you need to create a new developer account right away, you might consider using a different phone number, such as a work mobile or secondary line, to complete the registration process immediately.
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