An Azure service that provides an event-driven serverless compute platform.
Hello II,
Welcome to the Microsoft Q&A and thank you for posting your questions here.
I understand that you can't access an Azure resource that is created by you despite you're the tenant root admin.
This simply means the account currently using to access the resource does not have an effective Azure RBAC assignment on the subscription, resource group, or Function App. Creating a resource does not permanently grant ownership, and Microsoft Entra administrative roles are separate from Azure resource permissions. A Global Administrator does not automatically receive Owner or Contributor access to Azure resources. [- https://learn.microsoft.com/en-us/azure/role-based-access-control/elevate-access-global-admin, and https://learn.microsoft.com/en-us/azure/role-based-access-control/rbac-and-directory-admin-roles
The recommended fix is to:
- Verify you are signed into the correct tenant and subscription.
- Confirm the Function App still exists through Azure Resource Manager.
- Temporarily elevate access using Microsoft Entra ID > Properties > Access management for Azure resources if you are an active Global Administrator.
- Review your effective Azure RBAC assignments.
- Assign the appropriate Azure role (typically Contributor for management or Reader for visibility) at the resource-group scope.
- Refresh authentication and retest access.
- Investigate deny assignments, PIM activation, Conditional Access policies, and Activity Logs only if ARM access still fails after RBAC validation. - https://learn.microsoft.com/en-us/azure/role-based-access-control/deny-assignments
If the issue persists after RBAC correction, use the Request ID or Correlation ID from the failed request to identify the backend cause through Azure Activity Logs or contact Azure Support via your Azure portal. - https://learn.microsoft.com/azure/role-based-access-control/troubleshooting, https://learn.microsoft.com/azure/role-based-access-control/role-assignments-cli Check the associated links for more steps and reading to fix it.
I hope this is helpful. Please! Do not hesitate to let me know if you have any other questions, steps or clarifications.
Please do not close the thread by upvoting and accepting the answer if any part of it is helpful.