Hi @Liam Robert,
Microsoft uses a set of algorithms and telemetry that we get from your activity in the Microsoft 365 Developer Program and on your Microsoft 365 E5 developer subscription to determine whether you are actively developing. We check these regularly to update your status and determine whether your subscription should be extended. The only way that you can extend your subscription is to engage in valid development activity. If you're not using your subscription to develop custom solutions, your subscription will expire and will eventually be deleted.
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