Hi WoodyM,
Thank you for reaching out to us on the Microsoft Q&A forum.
If you're having trouble deleting an Azure tenant account created through an Azure MS Learn course, follow these steps to resolve the issue: Sign in to the Azure Portal using your Global Administrator account, and switch to the affected tenant via the Directories + Subscriptions menu. Delete all tenant resources, including users (except your admin account) and applications, by navigating to Azure AD B2C > Users and App registrations > All applications to remove them. Once all resources are cleared, go to the Microsoft Entra admin center, select Microsoft Entra ID (Azure AD) > Manage tenants, and choose the tenant you want to delete. If any checks fail, follow the provided guidance to address the issues. Once all checks are passed, you can complete the deletion process.
For reference, please go through the following document: Delete a tenant in Microsoft Entra ID
Please reach out to us if you have any other queries.
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